81222915

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{125927}}^1$

素因数の和:125978

約数の個数: 16

約数和(自身を含む): 132979968

約数和(自身を除く): 51757053

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 125927, 377781, 629635, 1888905, 5414861, 16244583, 27074305, 81222915]

約数ペア:

[(1, 81222915), (3, 27074305), (5, 16244583), (15, 5414861), (43, 1888905), (129, 629635), (215, 377781), (645, 125927)]