21426628

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{211}}^1\times {\mathrm{479}}^1$

素因数の和:747

約数の個数: 24

約数和(自身を含む): 38465280

約数和(自身を除く): 17038652

約数列:

[1, 2, 4, 53, 106, 211, 212, 422, 479, 844, 958, 1916, 11183, 22366, 25387, 44732, 50774, 101069, 101548, 202138, 404276, 5356657, 10713314, 21426628]

約数ペア:

[(1, 21426628), (2, 10713314), (4, 5356657), (53, 404276), (106, 202138), (211, 101548), (212, 101069), (422, 50774), (479, 44732), (844, 25387), (958, 22366), (1916, 11183)]