81963915

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{383}}^1\times {\mathrm{1297}}^1$

素因数の和:1699

約数の個数: 32

約数和(自身を含む): 143548416

約数和(自身を除く): 61584501

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 383, 1149, 1297, 1915, 3891, 4213, 5745, 6485, 12639, 14267, 19455, 21065, 42801, 63195, 71335, 214005, 496751, 1490253, 2483755, 5464261, 7451265, 16392783, 27321305, 81963915]

約数ペア:

[(1, 81963915), (3, 27321305), (5, 16392783), (11, 7451265), (15, 5464261), (33, 2483755), (55, 1490253), (165, 496751), (383, 214005), (1149, 71335), (1297, 63195), (1915, 42801), (3891, 21065), (4213, 19455), (5745, 14267), (6485, 12639)]