20889398

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{2281}}^1$

素因数の和:2543

約数の個数: 16

約数和(自身を含む): 33134640

約数和(自身を除く): 12245242

約数列:

[1, 2, 19, 38, 241, 482, 2281, 4562, 4579, 9158, 43339, 86678, 549721, 1099442, 10444699, 20889398]

約数ペア:

[(1, 20889398), (2, 10444699), (19, 1099442), (38, 549721), (241, 86678), (482, 43339), (2281, 9158), (4562, 4579)]