21266231

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{1747}}^1$

素因数の和:1838

約数の個数: 16

約数和(自身を含む): 25506816

約数和(自身を除く): 4240585

約数列:

[1, 7, 37, 47, 259, 329, 1739, 1747, 12173, 12229, 64639, 82109, 452473, 574763, 3038033, 21266231]

約数ペア:

[(1, 21266231), (7, 3038033), (37, 574763), (47, 452473), (259, 82109), (329, 64639), (1739, 12229), (1747, 12173)]