9920404

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2687}}^1$

素因数の和:2775

約数の個数: 24

約数和(自身を含む): 18966528

約数和(自身を除く): 9046124

約数列:

[1, 2, 4, 13, 26, 52, 71, 142, 284, 923, 1846, 2687, 3692, 5374, 10748, 34931, 69862, 139724, 190777, 381554, 763108, 2480101, 4960202, 9920404]

約数ペア:

[(1, 9920404), (2, 4960202), (4, 2480101), (13, 763108), (26, 381554), (52, 190777), (71, 139724), (142, 69862), (284, 34931), (923, 10748), (1846, 5374), (2687, 3692)]