21778257

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{3001}}^1$

素因数の和:3104

約数の個数: 16

約数和(自身を含む): 30260160

約数和(自身を除く): 8481903

約数列:

[1, 3, 41, 59, 123, 177, 2419, 3001, 7257, 9003, 123041, 177059, 369123, 531177, 7259419, 21778257]

約数ペア:

[(1, 21778257), (3, 7259419), (41, 531177), (59, 369123), (123, 177059), (177, 123041), (2419, 9003), (3001, 7257)]