20315379

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{15859}}^1$

素因数の和:15930

約数の個数: 16

約数和(自身を含む): 31466240

約数和(自身を除く): 11150861

約数列:

[1, 3, 7, 21, 61, 183, 427, 1281, 15859, 47577, 111013, 333039, 967399, 2902197, 6771793, 20315379]

約数ペア:

[(1, 20315379), (3, 6771793), (7, 2902197), (21, 967399), (61, 333039), (183, 111013), (427, 47577), (1281, 15859)]