208556719

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{21859}}^1$

素因数の和:21942

約数の個数: 16

約数和(自身を含む): 251827200

約数和(自身を除く): 43270481

約数列:

[1, 7, 29, 47, 203, 329, 1363, 9541, 21859, 153013, 633911, 1027373, 4437377, 7191611, 29793817, 208556719]

約数ペア:

[(1, 208556719), (7, 29793817), (29, 7191611), (47, 4437377), (203, 1027373), (329, 633911), (1363, 153013), (9541, 21859)]