21256016759

素因数分解:

${\mathrm{17}}^2\times {\mathrm{113}}^1\times {\mathrm{137}}^1\times {\mathrm{4751}}^1$

素因数の和:5035

約数の個数: 24

約数和(自身を含む): 22950848448

約数和(自身を除く): 1694831689

約数列:

[1, 17, 113, 137, 289, 1921, 2329, 4751, 15481, 32657, 39593, 80767, 263177, 536863, 650887, 1373039, 4474009, 9126671, 11065079, 73550231, 155153407, 188106343, 1250353927, 21256016759]

約数ペア:

[(1, 21256016759), (17, 1250353927), (113, 188106343), (137, 155153407), (289, 73550231), (1921, 11065079), (2329, 9126671), (4751, 4474009), (15481, 1373039), (32657, 650887), (39593, 536863), (80767, 263177)]