20105407

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{1579}}^1$

素因数の和:1710

約数の個数: 16

約数和(自身を含む): 24572160

約数和(自身を除く): 4466753

約数列:

[1, 7, 17, 107, 119, 749, 1579, 1819, 11053, 12733, 26843, 168953, 187901, 1182671, 2872201, 20105407]

約数ペア:

[(1, 20105407), (7, 2872201), (17, 1182671), (107, 187901), (119, 168953), (749, 26843), (1579, 12733), (1819, 11053)]