21614740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2531}}^1$

素因数の和:2608

約数の個数: 48

約数和(自身を含む): 52746624

約数和(自身を除く): 31131884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 1220, 1708, 2135, 2531, 4270, 5062, 8540, 10124, 12655, 17717, 25310, 35434, 50620, 70868, 88585, 154391, 177170, 308782, 354340, 617564, 771955, 1080737, 1543910, 2161474, 3087820, 4322948, 5403685, 10807370, 21614740]

約数ペア:

[(1, 21614740), (2, 10807370), (4, 5403685), (5, 4322948), (7, 3087820), (10, 2161474), (14, 1543910), (20, 1080737), (28, 771955), (35, 617564), (61, 354340), (70, 308782), (122, 177170), (140, 154391), (244, 88585), (305, 70868), (427, 50620), (610, 35434), (854, 25310), (1220, 17717), (1708, 12655), (2135, 10124), (2531, 8540), (4270, 5062)]