21532217

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{25849}}^1$

素因数の和:25880

約数の個数: 12

約数和(自身を含む): 26522100

約数和(自身を除く): 4989883

約数列:

[1, 7, 17, 49, 119, 833, 25849, 180943, 439433, 1266601, 3076031, 21532217]

約数ペア:

[(1, 21532217), (7, 3076031), (17, 1266601), (49, 439433), (119, 180943), (833, 25849)]