21310578

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{211}}^1$

素因数の和:431

約数の個数: 48

約数和(自身を含む): 48152832

約数和(自身を除く): 26842254

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 181, 186, 211, 279, 362, 422, 543, 558, 633, 1086, 1266, 1629, 1899, 3258, 3798, 5611, 6541, 11222, 13082, 16833, 19623, 33666, 38191, 39246, 50499, 58869, 76382, 100998, 114573, 117738, 229146, 343719, 687438, 1183921, 2367842, 3551763, 7103526, 10655289, 21310578]

約数ペア:

[(1, 21310578), (2, 10655289), (3, 7103526), (6, 3551763), (9, 2367842), (18, 1183921), (31, 687438), (62, 343719), (93, 229146), (181, 117738), (186, 114573), (211, 100998), (279, 76382), (362, 58869), (422, 50499), (543, 39246), (558, 38191), (633, 33666), (1086, 19623), (1266, 16833), (1629, 13082), (1899, 11222), (3258, 6541), (3798, 5611)]