81655743

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1559}}^1$

素因数の和:1671

約数の個数: 32

約数和(自身を含む): 125798400

約数和(自身を除く): 44142657

約数列:

[1, 3, 13, 17, 39, 51, 79, 221, 237, 663, 1027, 1343, 1559, 3081, 4029, 4677, 17459, 20267, 26503, 52377, 60801, 79509, 123161, 344539, 369483, 1033617, 1601093, 2093737, 4803279, 6281211, 27218581, 81655743]

約数ペア:

[(1, 81655743), (3, 27218581), (13, 6281211), (17, 4803279), (39, 2093737), (51, 1601093), (79, 1033617), (221, 369483), (237, 344539), (663, 123161), (1027, 79509), (1343, 60801), (1559, 52377), (3081, 26503), (4029, 20267), (4677, 17459)]