20940815

素因数分解:

$5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{2683}}^1$

素因数の和:2918

約数の個数: 16

約数和(自身を含む): 28858368

約数和(自身を除く): 7917553

約数列:

[1, 5, 7, 35, 223, 1115, 1561, 2683, 7805, 13415, 18781, 93905, 598309, 2991545, 4188163, 20940815]

約数ペア:

[(1, 20940815), (5, 4188163), (7, 2991545), (35, 598309), (223, 93905), (1115, 18781), (1561, 13415), (2683, 7805)]