21954924

素因数分解:

$2^2\times 3^2\times {\mathrm{609859}}^1$

素因数の和:609869

約数の個数: 18

約数和(自身を含む): 55497260

約数和(自身を除く): 33542336

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 609859, 1219718, 1829577, 2439436, 3659154, 5488731, 7318308, 10977462, 21954924]

約数ペア:

[(1, 21954924), (2, 10977462), (3, 7318308), (4, 5488731), (6, 3659154), (9, 2439436), (12, 1829577), (18, 1219718), (36, 609859)]