20161755

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23581}}^1$

素因数の和:23611

約数の個数: 24

約数和(自身を含む): 36787920

約数和(自身を除く): 16626165

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 23581, 70743, 117905, 212229, 353715, 448039, 1061145, 1344117, 2240195, 4032351, 6720585, 20161755]

約数ペア:

[(1, 20161755), (3, 6720585), (5, 4032351), (9, 2240195), (15, 1344117), (19, 1061145), (45, 448039), (57, 353715), (95, 212229), (171, 117905), (285, 70743), (855, 23581)]