20587427217

素因数分解:

$3^2\times 7^1\times {\mathrm{491}}^1\times {\mathrm{665549}}^1$

素因数の和:666053

約数の個数: 24

約数和(自身を含む): 34054862400

約数和(自身を除く): 13467435183

約数列:

[1, 3, 7, 9, 21, 63, 491, 1473, 3437, 4419, 10311, 30933, 665549, 1996647, 4658843, 5989941, 13976529, 41929587, 326784559, 980353677, 2287491913, 2941061031, 6862475739, 20587427217]

約数ペア:

[(1, 20587427217), (3, 6862475739), (7, 2941061031), (9, 2287491913), (21, 980353677), (63, 326784559), (491, 41929587), (1473, 13976529), (3437, 5989941), (4419, 4658843), (10311, 1996647), (30933, 665549)]