20525787

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{1163}}^1$

素因数の和:1259

約数の個数: 24

約数和(自身を含む): 31050864

約数和(自身を除く): 10525077

約数列:

[1, 3, 9, 37, 53, 111, 159, 333, 477, 1163, 1961, 3489, 5883, 10467, 17649, 43031, 61639, 129093, 184917, 387279, 554751, 2280643, 6841929, 20525787]

約数ペア:

[(1, 20525787), (3, 6841929), (9, 2280643), (37, 554751), (53, 387279), (111, 184917), (159, 129093), (333, 61639), (477, 43031), (1163, 17649), (1961, 10467), (3489, 5883)]