1992991

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{181}}^1$

素因数の和:223

約数の個数: 24

約数和(自身を含む): 2711072

約数和(自身を除く): 718081

約数列:

[1, 7, 11, 13, 77, 91, 121, 143, 181, 847, 1001, 1267, 1573, 1991, 2353, 11011, 13937, 16471, 21901, 25883, 153307, 181181, 284713, 1992991]

約数ペア:

[(1, 1992991), (7, 284713), (11, 181181), (13, 153307), (77, 25883), (91, 21901), (121, 16471), (143, 13937), (181, 11011), (847, 2353), (1001, 1991), (1267, 1573)]