81275769

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{523}}^1\times {\mathrm{557}}^1$

素因数の和:1117

約数の個数: 24

約数和(自身を含む): 121635072

約数和(自身を除く): 40359303

約数列:

[1, 3, 9, 31, 93, 279, 523, 557, 1569, 1671, 4707, 5013, 16213, 17267, 48639, 51801, 145917, 155403, 291311, 873933, 2621799, 9030641, 27091923, 81275769]

約数ペア:

[(1, 81275769), (3, 27091923), (9, 9030641), (31, 2621799), (93, 873933), (279, 291311), (523, 155403), (557, 145917), (1569, 51801), (1671, 48639), (4707, 17267), (5013, 16213)]