21018924

素因数分解:

$2^2\times 3^2\times {\mathrm{583859}}^1$

素因数の和:583869

約数の個数: 18

約数和(自身を含む): 53131260

約数和(自身を除く): 32112336

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 583859, 1167718, 1751577, 2335436, 3503154, 5254731, 7006308, 10509462, 21018924]

約数ペア:

[(1, 21018924), (2, 10509462), (3, 7006308), (4, 5254731), (6, 3503154), (9, 2335436), (12, 1751577), (18, 1167718), (36, 583859)]