21605101

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{677}}^1$

素因数の和:828

約数の個数: 16

約数和(自身を含む): 25514496

約数和(自身を除く): 3909395

約数列:

[1, 7, 47, 97, 329, 677, 679, 4559, 4739, 31819, 31913, 65669, 222733, 459683, 3086443, 21605101]

約数ペア:

[(1, 21605101), (7, 3086443), (47, 459683), (97, 222733), (329, 65669), (677, 31913), (679, 31819), (4559, 4739)]