8162991

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:220

約数の個数: 32

約数和(自身を含む): 12672000

約数和(自身を除く): 4509009

約数列:

[1, 3, 9, 27, 43, 79, 89, 129, 237, 267, 387, 711, 801, 1161, 2133, 2403, 3397, 3827, 7031, 10191, 11481, 21093, 30573, 34443, 63279, 91719, 103329, 189837, 302333, 906999, 2720997, 8162991]

約数ペア:

[(1, 8162991), (3, 2720997), (9, 906999), (27, 302333), (43, 189837), (79, 103329), (89, 91719), (129, 63279), (237, 34443), (267, 30573), (387, 21093), (711, 11481), (801, 10191), (1161, 7031), (2133, 3827), (2403, 3397)]