21541479

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{2221}}^1$

素因数の和:2338

約数の個数: 16

約数和(自身を含む): 29757024

約数和(自身を除く): 8215545

約数列:

[1, 3, 53, 61, 159, 183, 2221, 3233, 6663, 9699, 117713, 135481, 353139, 406443, 7180493, 21541479]

約数ペア:

[(1, 21541479), (3, 7180493), (53, 406443), (61, 353139), (159, 135481), (183, 117713), (2221, 9699), (3233, 6663)]