21975720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{14087}}^1$

素因数の和:14114

約数の個数: 64

約数和(自身を含む): 71003520

約数和(自身を除く): 49027800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 14087, 28174, 42261, 56348, 70435, 84522, 112696, 140870, 169044, 183131, 211305, 281740, 338088, 366262, 422610, 549393, 563480, 732524, 845220, 915655, 1098786, 1465048, 1690440, 1831310, 2197572, 2746965, 3662620, 4395144, 5493930, 7325240, 10987860, 21975720]

約数ペア:

[(1, 21975720), (2, 10987860), (3, 7325240), (4, 5493930), (5, 4395144), (6, 3662620), (8, 2746965), (10, 2197572), (12, 1831310), (13, 1690440), (15, 1465048), (20, 1098786), (24, 915655), (26, 845220), (30, 732524), (39, 563480), (40, 549393), (52, 422610), (60, 366262), (65, 338088), (78, 281740), (104, 211305), (120, 183131), (130, 169044), (156, 140870), (195, 112696), (260, 84522), (312, 70435), (390, 56348), (520, 42261), (780, 28174), (1560, 14087)]