220671507

素因数分解:

$3^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{66931}}^1$

素因数の和:67098

約数の個数: 16

約数和(自身を含む): 338408192

約数和(自身を除く): 117736685

約数列:

[1, 3, 7, 21, 157, 471, 1099, 3297, 66931, 200793, 468517, 1405551, 10508167, 31524501, 73557169, 220671507]

約数ペア:

[(1, 220671507), (3, 73557169), (7, 31524501), (21, 10508167), (157, 1405551), (471, 468517), (1099, 200793), (3297, 66931)]