20021169

素因数分解:

$3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{7507}}^1$

素因数の和:7644

約数の個数: 16

約数和(自身を含む): 30752768

約数和(自身を除く): 10731599

約数列:

[1, 3, 7, 21, 127, 381, 889, 2667, 7507, 22521, 52549, 157647, 953389, 2860167, 6673723, 20021169]

約数ペア:

[(1, 20021169), (3, 6673723), (7, 2860167), (21, 953389), (127, 157647), (381, 52549), (889, 22521), (2667, 7507)]