128636019

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{51229}}^1$

素因数の和:51272

約数の個数: 20

約数和(自身を含む): 198362560

約数和(自身を除く): 69726541

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 51229, 153687, 461061, 1383183, 1588099, 4149549, 4764297, 14292891, 42878673, 128636019]

約数ペア:

[(1, 128636019), (3, 42878673), (9, 14292891), (27, 4764297), (31, 4149549), (81, 1588099), (93, 1383183), (279, 461061), (837, 153687), (2511, 51229)]