18691010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2357}}^1$

素因数の和:2438

約数の個数: 32

約数和(自身を含む): 36841392

約数和(自身を除く): 18150382

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 122, 130, 305, 610, 793, 1586, 2357, 3965, 4714, 7930, 11785, 23570, 30641, 61282, 143777, 153205, 287554, 306410, 718885, 1437770, 1869101, 3738202, 9345505, 18691010]

約数ペア:

[(1, 18691010), (2, 9345505), (5, 3738202), (10, 1869101), (13, 1437770), (26, 718885), (61, 306410), (65, 287554), (122, 153205), (130, 143777), (305, 61282), (610, 30641), (793, 23570), (1586, 11785), (2357, 7930), (3965, 4714)]