21943159

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{757}}^1$

素因数の和:906

約数の個数: 16

約数和(自身を含む): 25978176

約数和(自身を除く): 4035017

約数列:

[1, 7, 41, 101, 287, 707, 757, 4141, 5299, 28987, 31037, 76457, 217259, 535199, 3134737, 21943159]

約数ペア:

[(1, 21943159), (7, 3134737), (41, 535199), (101, 217259), (287, 76457), (707, 31037), (757, 28987), (4141, 5299)]