21781408

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{61879}}^1$

素因数の和:61900

約数の個数: 24

約数和(自身を含む): 46781280

約数和(自身を除く): 24999872

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 176, 352, 61879, 123758, 247516, 495032, 680669, 990064, 1361338, 1980128, 2722676, 5445352, 10890704, 21781408]

約数ペア:

[(1, 21781408), (2, 10890704), (4, 5445352), (8, 2722676), (11, 1980128), (16, 1361338), (22, 990064), (32, 680669), (44, 495032), (88, 247516), (176, 123758), (352, 61879)]