21561121

素因数分解:

${\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{233}}^1$

素因数の和:372

約数の個数: 16

約数和(自身を含む): 23154768

約数和(自身を除く): 1593647

約数列:

[1, 37, 41, 61, 233, 1517, 2257, 2501, 8621, 9553, 14213, 92537, 353461, 525881, 582733, 21561121]

約数ペア:

[(1, 21561121), (37, 582733), (41, 525881), (61, 353461), (233, 92537), (1517, 14213), (2257, 9553), (2501, 8621)]