25786789

素因数分解:

$7^2\times {\mathrm{641}}^1\times {\mathrm{821}}^1$

素因数の和:1476

約数の個数: 12

約数和(自身を含む): 30080268

約数和(自身を除く): 4293479

約数列:

[1, 7, 49, 641, 821, 4487, 5747, 31409, 40229, 526261, 3683827, 25786789]

約数ペア:

[(1, 25786789), (7, 3683827), (49, 526261), (641, 40229), (821, 31409), (4487, 5747)]