21283591

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{22861}}^1$

素因数の和:22894

約数の個数: 12

約数和(自身を含む): 26062680

約数和(自身を除く): 4779089

約数列:

[1, 7, 19, 49, 133, 931, 22861, 160027, 434359, 1120189, 3040513, 21283591]

約数ペア:

[(1, 21283591), (7, 3040513), (19, 1120189), (49, 434359), (133, 160027), (931, 22861)]