639474867

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{419}}^1\times {\mathrm{2531}}^1$

素因数の和:3023

約数の個数: 24

約数和(自身を含む): 940080960

約数和(自身を除く): 300606093

約数列:

[1, 3, 9, 67, 201, 419, 603, 1257, 2531, 3771, 7593, 22779, 28073, 84219, 169577, 252657, 508731, 1060489, 1526193, 3181467, 9544401, 71052763, 213158289, 639474867]

約数ペア:

[(1, 639474867), (3, 213158289), (9, 71052763), (67, 9544401), (201, 3181467), (419, 1526193), (603, 1060489), (1257, 508731), (2531, 252657), (3771, 169577), (7593, 84219), (22779, 28073)]