21072531

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{10531}}^1$

素因数の和:10586

約数の個数: 16

約数和(自身を含む): 30332160

約数和(自身を除く): 9259629

約数列:

[1, 3, 23, 29, 69, 87, 667, 2001, 10531, 31593, 242213, 305399, 726639, 916197, 7024177, 21072531]

約数ペア:

[(1, 21072531), (3, 7024177), (23, 916197), (29, 726639), (69, 305399), (87, 242213), (667, 31593), (2001, 10531)]