81489978

素因数分解:

$2^1\times 3^2\times {\mathrm{409}}^1\times {\mathrm{11069}}^1$

素因数の和:11486

約数の個数: 24

約数和(自身を含む): 177009300

約数和(自身を除く): 95519322

約数列:

[1, 2, 3, 6, 9, 18, 409, 818, 1227, 2454, 3681, 7362, 11069, 22138, 33207, 66414, 99621, 199242, 4527221, 9054442, 13581663, 27163326, 40744989, 81489978]

約数ペア:

[(1, 81489978), (2, 40744989), (3, 27163326), (6, 13581663), (9, 9054442), (18, 4527221), (409, 199242), (818, 99621), (1227, 66414), (2454, 33207), (3681, 22138), (7362, 11069)]