20702507

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{863}}^1$

素因数の和:1042

約数の個数: 16

約数和(自身を含む): 24883200

約数和(自身を除く): 4180693

約数列:

[1, 7, 23, 149, 161, 863, 1043, 3427, 6041, 19849, 23989, 128587, 138943, 900109, 2957501, 20702507]

約数ペア:

[(1, 20702507), (7, 2957501), (23, 900109), (149, 138943), (161, 128587), (863, 23989), (1043, 19849), (3427, 6041)]