51991961

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1\times {\mathrm{907}}^1$

素因数の和:1364

約数の個数: 16

約数和(自身を含む): 62760960

約数和(自身を除く): 10768999

約数列:

[1, 7, 19, 133, 431, 907, 3017, 6349, 8189, 17233, 57323, 120631, 390917, 2736419, 7427423, 51991961]

約数ペア:

[(1, 51991961), (7, 7427423), (19, 2736419), (133, 390917), (431, 120631), (907, 57323), (3017, 17233), (6349, 8189)]