20821116

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{40351}}^1$

素因数の和:40401

約数の個数: 24

約数和(自身を含む): 49713664

約数和(自身を除く): 28892548

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 40351, 80702, 121053, 161404, 242106, 484212, 1735093, 3470186, 5205279, 6940372, 10410558, 20821116]

約数ペア:

[(1, 20821116), (2, 10410558), (3, 6940372), (4, 5205279), (6, 3470186), (12, 1735093), (43, 484212), (86, 242106), (129, 161404), (172, 121053), (258, 80702), (516, 40351)]