638996943

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{167}}^1\times {\mathrm{7547}}^1$

素因数の和:7743

約数の個数: 24

約数和(自身を含む): 928222848

約数和(自身を除く): 289225905

約数列:

[1, 3, 13, 39, 167, 169, 501, 507, 2171, 6513, 7547, 22641, 28223, 84669, 98111, 294333, 1260349, 1275443, 3781047, 3826329, 16384537, 49153611, 212998981, 638996943]

約数ペア:

[(1, 638996943), (3, 212998981), (13, 49153611), (39, 16384537), (167, 3826329), (169, 3781047), (501, 1275443), (507, 1260349), (2171, 294333), (6513, 98111), (7547, 84669), (22641, 28223)]