21989669

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{701}}^1$

素因数の和:860

約数の個数: 16

約数和(自身を含む): 25159680

約数和(自身を除く): 3170011

約数列:

[1, 13, 19, 127, 247, 701, 1651, 2413, 9113, 13319, 31369, 89027, 173147, 1157351, 1691513, 21989669]

約数ペア:

[(1, 21989669), (13, 1691513), (19, 1157351), (127, 173147), (247, 89027), (701, 31369), (1651, 13319), (2413, 9113)]