21385887

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{9151}}^1$

素因数の和:9214

約数の個数: 16

約数和(自身を含む): 30750720

約数和(自身を除く): 9364833

約数列:

[1, 3, 19, 41, 57, 123, 779, 2337, 9151, 27453, 173869, 375191, 521607, 1125573, 7128629, 21385887]

約数ペア:

[(1, 21385887), (3, 7128629), (19, 1125573), (41, 521607), (57, 375191), (123, 173869), (779, 27453), (2337, 9151)]