216971881

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{22741}}^1$

素因数の和:22824

約数の個数: 16

約数和(自身を含む): 261987840

約数和(自身を除く): 45015959

約数列:

[1, 7, 29, 47, 203, 329, 1363, 9541, 22741, 159187, 659489, 1068827, 4616423, 7481789, 30995983, 216971881]

約数ペア:

[(1, 216971881), (7, 30995983), (29, 7481789), (47, 4616423), (203, 1068827), (329, 659489), (1363, 159187), (9541, 22741)]