20161023

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{373}}^1\times {\mathrm{419}}^1$

素因数の和:838

約数の個数: 16

約数和(自身を含む): 27646080

約数和(自身を除く): 7485057

約数列:

[1, 3, 43, 129, 373, 419, 1119, 1257, 16039, 18017, 48117, 54051, 156287, 468861, 6720341, 20161023]

約数ペア:

[(1, 20161023), (3, 6720341), (43, 468861), (129, 156287), (373, 54051), (419, 48117), (1119, 18017), (1257, 16039)]