212721318

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{381221}}^1$

素因数の和:381260

約数の個数: 24

約数和(自身を含む): 475765056

約数和(自身を除く): 263043738

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 186, 279, 558, 381221, 762442, 1143663, 2287326, 3430989, 6861978, 11817851, 23635702, 35453553, 70907106, 106360659, 212721318]

約数ペア:

[(1, 212721318), (2, 106360659), (3, 70907106), (6, 35453553), (9, 23635702), (18, 11817851), (31, 6861978), (62, 3430989), (93, 2287326), (186, 1143663), (279, 762442), (558, 381221)]