20171939

素因数分解:

${\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1$

素因数の和:338

約数の個数: 16

約数和(自身を含む): 21888000

約数和(自身を除く): 1716061

約数列:

[1, 19, 79, 89, 151, 1501, 1691, 2869, 7031, 11929, 13439, 133589, 226651, 255341, 1061681, 20171939]

約数ペア:

[(1, 20171939), (19, 1061681), (79, 255341), (89, 226651), (151, 133589), (1501, 13439), (1691, 11929), (2869, 7031)]