1420020721

素因数分解:

$7^1\times {\mathrm{89}}^1\times {\mathrm{757}}^1\times {\mathrm{3011}}^1$

素因数の和:3864

約数の個数: 16

約数和(自身を含む): 1643829120

約数和(自身を除く): 223808399

約数列:

[1, 7, 89, 623, 757, 3011, 5299, 21077, 67373, 267979, 471611, 1875853, 2279327, 15955289, 202860103, 1420020721]

約数ペア:

[(1, 1420020721), (7, 202860103), (89, 15955289), (623, 2279327), (757, 1875853), (3011, 471611), (5299, 267979), (21077, 67373)]