20815074721

素因数分解:

$7^1\times {\mathrm{139}}^1\times {\mathrm{21392677}}^1$

素因数の和:21392823

約数の個数: 8

約数和(自身を含む): 23959799360

約数和(自身を除く): 3144724639

約数列:

[1, 7, 139, 973, 21392677, 149748739, 2973582103, 20815074721]

約数ペア:

[(1, 20815074721), (7, 2973582103), (139, 149748739), (973, 21392677)]