21197880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1$

素因数の和:182

約数の個数: 192

約数和(自身を含む): 77332320

約数和(自身を除く): 56134440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 53, 55, 60, 66, 72, 88, 90, 99, 101, 106, 110, 120, 132, 159, 165, 180, 198, 202, 212, 220, 264, 265, 303, 318, 330, 360, 396, 404, 424, 440, 477, 495, 505, 530, 583, 606, 636, 660, 792, 795, 808, 909, 954, 990, 1010, 1060, 1111, 1166, 1212, 1272, 1320, 1515, 1590, 1749, 1818, 1908, 1980, 2020, 2120, 2222, 2332, 2385, 2424, 2915, 3030, 3180, 3333, 3498, 3636, 3816, 3960, 4040, 4444, 4545, 4664, 4770, 5247, 5353, 5555, 5830, 6060, 6360, 6666, 6996, 7272, 8745, 8888, 9090, 9540, 9999, 10494, 10706, 11110, 11660, 12120, 13332, 13992, 16059, 16665, 17490, 18180, 19080, 19998, 20988, 21412, 22220, 23320, 26235, 26664, 26765, 32118, 33330, 34980, 36360, 39996, 41976, 42824, 44440, 48177, 49995, 52470, 53530, 58883, 64236, 66660, 69960, 79992, 80295, 96354, 99990, 104940, 107060, 117766, 128472, 133320, 160590, 176649, 192708, 199980, 209880, 214120, 235532, 240885, 294415, 321180, 353298, 385416, 399960, 471064, 481770, 529947, 588830, 642360, 706596, 883245, 963540, 1059894, 1177660, 1413192, 1766490, 1927080, 2119788, 2355320, 2649735, 3532980, 4239576, 5299470, 7065960, 10598940, 21197880]

約数ペア:

[(1, 21197880), (2, 10598940), (3, 7065960), (4, 5299470), (5, 4239576), (6, 3532980), (8, 2649735), (9, 2355320), (10, 2119788), (11, 1927080), (12, 1766490), (15, 1413192), (18, 1177660), (20, 1059894), (22, 963540), (24, 883245), (30, 706596), (33, 642360), (36, 588830), (40, 529947), (44, 481770), (45, 471064), (53, 399960), (55, 385416), (60, 353298), (66, 321180), (72, 294415), (88, 240885), (90, 235532), (99, 214120), (101, 209880), (106, 199980), (110, 192708), (120, 176649), (132, 160590), (159, 133320), (165, 128472), (180, 117766), (198, 107060), (202, 104940), (212, 99990), (220, 96354), (264, 80295), (265, 79992), (303, 69960), (318, 66660), (330, 64236), (360, 58883), (396, 53530), (404, 52470), (424, 49995), (440, 48177), (477, 44440), (495, 42824), (505, 41976), (530, 39996), (583, 36360), (606, 34980), (636, 33330), (660, 32118), (792, 26765), (795, 26664), (808, 26235), (909, 23320), (954, 22220), (990, 21412), (1010, 20988), (1060, 19998), (1111, 19080), (1166, 18180), (1212, 17490), (1272, 16665), (1320, 16059), (1515, 13992), (1590, 13332), (1749, 12120), (1818, 11660), (1908, 11110), (1980, 10706), (2020, 10494), (2120, 9999), (2222, 9540), (2332, 9090), (2385, 8888), (2424, 8745), (2915, 7272), (3030, 6996), (3180, 6666), (3333, 6360), (3498, 6060), (3636, 5830), (3816, 5555), (3960, 5353), (4040, 5247), (4444, 4770), (4545, 4664)]