20660991

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{7907}}^1$

素因数の和:7990

約数の個数: 16

約数和(自身を含む): 30113664

約数和(自身を除く): 9452673

約数列:

[1, 3, 13, 39, 67, 201, 871, 2613, 7907, 23721, 102791, 308373, 529769, 1589307, 6886997, 20660991]

約数ペア:

[(1, 20660991), (3, 6886997), (13, 1589307), (39, 529769), (67, 308373), (201, 102791), (871, 23721), (2613, 7907)]