21055696

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{42451}}^1$

素因数の和:42490

約数の個数: 20

約数和(自身を含む): 42112384

約数和(自身を除く): 21056688

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 42451, 84902, 169804, 339608, 679216, 1315981, 2631962, 5263924, 10527848, 21055696]

約数ペア:

[(1, 21055696), (2, 10527848), (4, 5263924), (8, 2631962), (16, 1315981), (31, 679216), (62, 339608), (124, 169804), (248, 84902), (496, 42451)]