21464520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1$

素因数の和:156

約数の個数: 256

約数和(自身を含む): 84602880

約数和(自身を除く): 63138360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 23, 24, 28, 30, 33, 35, 40, 42, 44, 46, 55, 56, 60, 66, 69, 70, 77, 84, 88, 92, 101, 105, 110, 115, 120, 132, 138, 140, 154, 161, 165, 168, 184, 202, 210, 220, 230, 231, 253, 264, 276, 280, 303, 308, 322, 330, 345, 385, 404, 420, 440, 460, 462, 483, 505, 506, 552, 606, 616, 644, 660, 690, 707, 759, 770, 805, 808, 840, 920, 924, 966, 1010, 1012, 1111, 1155, 1212, 1265, 1288, 1320, 1380, 1414, 1515, 1518, 1540, 1610, 1771, 1848, 1932, 2020, 2024, 2121, 2222, 2310, 2323, 2415, 2424, 2530, 2760, 2828, 3030, 3036, 3080, 3220, 3333, 3535, 3542, 3795, 3864, 4040, 4242, 4444, 4620, 4646, 4830, 5060, 5313, 5555, 5656, 6060, 6072, 6440, 6666, 6969, 7070, 7084, 7590, 7777, 8484, 8855, 8888, 9240, 9292, 9660, 10120, 10605, 10626, 11110, 11615, 12120, 13332, 13938, 14140, 14168, 15180, 15554, 16261, 16665, 16968, 17710, 18584, 19320, 21210, 21252, 22220, 23230, 23331, 25553, 26565, 26664, 27876, 28280, 30360, 31108, 32522, 33330, 34845, 35420, 38885, 42420, 42504, 44440, 46460, 46662, 48783, 51106, 53130, 55752, 62216, 65044, 66660, 69690, 70840, 76659, 77770, 81305, 84840, 92920, 93324, 97566, 102212, 106260, 116655, 127765, 130088, 133320, 139380, 153318, 155540, 162610, 178871, 186648, 195132, 204424, 212520, 233310, 243915, 255530, 278760, 306636, 311080, 325220, 357742, 383295, 390264, 466620, 487830, 511060, 536613, 613272, 650440, 715484, 766590, 894355, 933240, 975660, 1022120, 1073226, 1430968, 1533180, 1788710, 1951320, 2146452, 2683065, 3066360, 3577420, 4292904, 5366130, 7154840, 10732260, 21464520]

約数ペア:

[(1, 21464520), (2, 10732260), (3, 7154840), (4, 5366130), (5, 4292904), (6, 3577420), (7, 3066360), (8, 2683065), (10, 2146452), (11, 1951320), (12, 1788710), (14, 1533180), (15, 1430968), (20, 1073226), (21, 1022120), (22, 975660), (23, 933240), (24, 894355), (28, 766590), (30, 715484), (33, 650440), (35, 613272), (40, 536613), (42, 511060), (44, 487830), (46, 466620), (55, 390264), (56, 383295), (60, 357742), (66, 325220), (69, 311080), (70, 306636), (77, 278760), (84, 255530), (88, 243915), (92, 233310), (101, 212520), (105, 204424), (110, 195132), (115, 186648), (120, 178871), (132, 162610), (138, 155540), (140, 153318), (154, 139380), (161, 133320), (165, 130088), (168, 127765), (184, 116655), (202, 106260), (210, 102212), (220, 97566), (230, 93324), (231, 92920), (253, 84840), (264, 81305), (276, 77770), (280, 76659), (303, 70840), (308, 69690), (322, 66660), (330, 65044), (345, 62216), (385, 55752), (404, 53130), (420, 51106), (440, 48783), (460, 46662), (462, 46460), (483, 44440), (505, 42504), (506, 42420), (552, 38885), (606, 35420), (616, 34845), (644, 33330), (660, 32522), (690, 31108), (707, 30360), (759, 28280), (770, 27876), (805, 26664), (808, 26565), (840, 25553), (920, 23331), (924, 23230), (966, 22220), (1010, 21252), (1012, 21210), (1111, 19320), (1155, 18584), (1212, 17710), (1265, 16968), (1288, 16665), (1320, 16261), (1380, 15554), (1414, 15180), (1515, 14168), (1518, 14140), (1540, 13938), (1610, 13332), (1771, 12120), (1848, 11615), (1932, 11110), (2020, 10626), (2024, 10605), (2121, 10120), (2222, 9660), (2310, 9292), (2323, 9240), (2415, 8888), (2424, 8855), (2530, 8484), (2760, 7777), (2828, 7590), (3030, 7084), (3036, 7070), (3080, 6969), (3220, 6666), (3333, 6440), (3535, 6072), (3542, 6060), (3795, 5656), (3864, 5555), (4040, 5313), (4242, 5060), (4444, 4830), (4620, 4646)]