21541761

素因数分解:

$3^3\times {\mathrm{443}}^1\times {\mathrm{1801}}^1$

素因数の和:2253

約数の個数: 16

約数和(自身を含む): 32003520

約数和(自身を除く): 10461759

約数列:

[1, 3, 9, 27, 443, 1329, 1801, 3987, 5403, 11961, 16209, 48627, 797843, 2393529, 7180587, 21541761]

約数ペア:

[(1, 21541761), (3, 7180587), (9, 2393529), (27, 797843), (443, 48627), (1329, 16209), (1801, 11961), (3987, 5403)]