20680484

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{12703}}^1$

素因数の和:12755

約数の個数: 24

約数和(自身を含む): 40551168

約数和(自身を除く): 19870684

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 148, 407, 814, 1628, 12703, 25406, 50812, 139733, 279466, 470011, 558932, 940022, 1880044, 5170121, 10340242, 20680484]

約数ペア:

[(1, 20680484), (2, 10340242), (4, 5170121), (11, 1880044), (22, 940022), (37, 558932), (44, 470011), (74, 279466), (148, 139733), (407, 50812), (814, 25406), (1628, 12703)]