20188457

素因数分解:

${\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1$

素因数の和:352

約数の個数: 16

約数和(自身を含む): 21859200

約数和(自身を除く): 1670743

約数列:

[1, 23, 43, 137, 149, 989, 3151, 3427, 5891, 6407, 20413, 135493, 147361, 469499, 877759, 20188457]

約数ペア:

[(1, 20188457), (23, 877759), (43, 469499), (137, 147361), (149, 135493), (989, 20413), (3151, 6407), (3427, 5891)]