21253556

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{227}}^1\times {\mathrm{263}}^1$

素因数の和:583

約数の個数: 24

約数和(自身を含む): 37920960

約数和(自身を除く): 16667404

約数列:

[1, 2, 4, 89, 178, 227, 263, 356, 454, 526, 908, 1052, 20203, 23407, 40406, 46814, 59701, 80812, 93628, 119402, 238804, 5313389, 10626778, 21253556]

約数ペア:

[(1, 21253556), (2, 10626778), (4, 5313389), (89, 238804), (178, 119402), (227, 93628), (263, 80812), (356, 59701), (454, 46814), (526, 40406), (908, 23407), (1052, 20203)]