20990131

素因数分解:

${\mathrm{31}}^1\times {\mathrm{431}}^1\times {\mathrm{1571}}^1$

素因数の和:2033

約数の個数: 8

約数和(自身を含む): 21731328

約数和(自身を除く): 741197

約数列:

[1, 31, 431, 1571, 13361, 48701, 677101, 20990131]

約数ペア:

[(1, 20990131), (31, 677101), (431, 48701), (1571, 13361)]