20169919

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1627}}^1$

素因数の和:1675

約数の個数: 24

約数和(自身を含む): 26725248

約数和(自身を除く): 6555329

約数列:

[1, 7, 11, 23, 49, 77, 161, 253, 539, 1127, 1627, 1771, 11389, 12397, 17897, 37421, 79723, 125279, 261947, 411631, 876953, 1833629, 2881417, 20169919]

約数ペア:

[(1, 20169919), (7, 2881417), (11, 1833629), (23, 876953), (49, 411631), (77, 261947), (161, 125279), (253, 79723), (539, 37421), (1127, 17897), (1627, 12397), (1771, 11389)]