21731160

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{163}}^1$

素因数の和:289

約数の個数: 128

約数和(自身を含む): 72264960

約数和(自身を除く): 50533800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 101, 110, 120, 132, 163, 165, 202, 220, 264, 303, 326, 330, 404, 440, 489, 505, 606, 652, 660, 808, 815, 978, 1010, 1111, 1212, 1304, 1320, 1515, 1630, 1793, 1956, 2020, 2222, 2424, 2445, 3030, 3260, 3333, 3586, 3912, 4040, 4444, 4890, 5379, 5555, 6060, 6520, 6666, 7172, 8888, 8965, 9780, 10758, 11110, 12120, 13332, 14344, 16463, 16665, 17930, 19560, 21516, 22220, 26664, 26895, 32926, 33330, 35860, 43032, 44440, 49389, 53790, 65852, 66660, 71720, 82315, 98778, 107580, 131704, 133320, 164630, 181093, 197556, 215160, 246945, 329260, 362186, 395112, 493890, 543279, 658520, 724372, 905465, 987780, 1086558, 1448744, 1810930, 1975560, 2173116, 2716395, 3621860, 4346232, 5432790, 7243720, 10865580, 21731160]

約数ペア:

[(1, 21731160), (2, 10865580), (3, 7243720), (4, 5432790), (5, 4346232), (6, 3621860), (8, 2716395), (10, 2173116), (11, 1975560), (12, 1810930), (15, 1448744), (20, 1086558), (22, 987780), (24, 905465), (30, 724372), (33, 658520), (40, 543279), (44, 493890), (55, 395112), (60, 362186), (66, 329260), (88, 246945), (101, 215160), (110, 197556), (120, 181093), (132, 164630), (163, 133320), (165, 131704), (202, 107580), (220, 98778), (264, 82315), (303, 71720), (326, 66660), (330, 65852), (404, 53790), (440, 49389), (489, 44440), (505, 43032), (606, 35860), (652, 33330), (660, 32926), (808, 26895), (815, 26664), (978, 22220), (1010, 21516), (1111, 19560), (1212, 17930), (1304, 16665), (1320, 16463), (1515, 14344), (1630, 13332), (1793, 12120), (1956, 11110), (2020, 10758), (2222, 9780), (2424, 8965), (2445, 8888), (3030, 7172), (3260, 6666), (3333, 6520), (3586, 6060), (3912, 5555), (4040, 5379), (4444, 4890)]