20212685

素因数分解:

$5^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1\times {\mathrm{229}}^1$

素因数の和:500

約数の個数: 16

約数和(自身を含む): 24729600

約数和(自身を除く): 4516915

約数列:

[1, 5, 127, 139, 229, 635, 695, 1145, 17653, 29083, 31831, 88265, 145415, 159155, 4042537, 20212685]

約数ペア:

[(1, 20212685), (5, 4042537), (127, 159155), (139, 145415), (229, 88265), (635, 31831), (695, 29083), (1145, 17653)]