20957001

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{443}}^1\times {\mathrm{1213}}^1$

素因数の和:1672

約数の個数: 16

約数和(自身を含む): 30184896

約数和(自身を除く): 9227895

約数列:

[1, 3, 13, 39, 443, 1213, 1329, 3639, 5759, 15769, 17277, 47307, 537359, 1612077, 6985667, 20957001]

約数ペア:

[(1, 20957001), (3, 6985667), (13, 1612077), (39, 537359), (443, 47307), (1213, 17277), (1329, 15769), (3639, 5759)]