20913333

素因数分解:

$3^1\times 7^1\times {\mathrm{821}}^1\times {\mathrm{1213}}^1$

素因数の和:2044

約数の個数: 16

約数和(自身を含む): 31933056

約数和(自身を除く): 11019723

約数列:

[1, 3, 7, 21, 821, 1213, 2463, 3639, 5747, 8491, 17241, 25473, 995873, 2987619, 6971111, 20913333]

約数ペア:

[(1, 20913333), (3, 6971111), (7, 2987619), (21, 995873), (821, 25473), (1213, 17241), (2463, 8491), (3639, 5747)]