21580528

素因数分解:

$2^4\times {\mathrm{829}}^1\times {\mathrm{1627}}^1$

素因数の和:2464

約数の個数: 20

約数和(自身を含む): 41888440

約数和(自身を除く): 20307912

約数列:

[1, 2, 4, 8, 16, 829, 1627, 1658, 3254, 3316, 6508, 6632, 13016, 13264, 26032, 1348783, 2697566, 5395132, 10790264, 21580528]

約数ペア:

[(1, 21580528), (2, 10790264), (4, 5395132), (8, 2697566), (16, 1348783), (829, 26032), (1627, 13264), (1658, 13016), (3254, 6632), (3316, 6508)]