87321978

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{156491}}^1$

素因数の和:156530

約数の個数: 24

約数和(自身を含む): 195302016

約数和(自身を除く): 107980038

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 186, 279, 558, 156491, 312982, 469473, 938946, 1408419, 2816838, 4851221, 9702442, 14553663, 29107326, 43660989, 87321978]

約数ペア:

[(1, 87321978), (2, 43660989), (3, 29107326), (6, 14553663), (9, 9702442), (18, 4851221), (31, 2816838), (62, 1408419), (93, 938946), (186, 469473), (279, 312982), (558, 156491)]