21580167

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{7393}}^1$

素因数の和:7542

約数の個数: 16

約数和(自身を含む): 33125120

約数和(自身を除く): 11544953

約数列:

[1, 3, 7, 21, 139, 417, 973, 2919, 7393, 22179, 51751, 155253, 1027627, 3082881, 7193389, 21580167]

約数ペア:

[(1, 21580167), (3, 7193389), (7, 3082881), (21, 1027627), (139, 155253), (417, 51751), (973, 22179), (2919, 7393)]