21923541

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{8731}}^1$

素因数の和:8774

約数の個数: 20

約数和(自身を含む): 33810304

約数和(自身を除く): 11886763

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 8731, 26193, 78579, 235737, 270661, 707211, 811983, 2435949, 7307847, 21923541]

約数ペア:

[(1, 21923541), (3, 7307847), (9, 2435949), (27, 811983), (31, 707211), (81, 270661), (93, 235737), (279, 78579), (837, 26193), (2511, 8731)]