28581427

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1\times {\mathrm{523}}^1$

素因数の和:778

約数の個数: 16

約数和(自身を含む): 33770752

約数和(自身を除く): 5189325

約数列:

[1, 7, 37, 211, 259, 523, 1477, 3661, 7807, 19351, 54649, 110353, 135457, 772471, 4083061, 28581427]

約数ペア:

[(1, 28581427), (7, 4083061), (37, 772471), (211, 135457), (259, 110353), (523, 54649), (1477, 19351), (3661, 7807)]