21941305

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{293}}^1\times {\mathrm{881}}^1$

素因数の和:1196

約数の個数: 16

約数和(自身を含む): 28005264

約数和(自身を除く): 6063959

約数列:

[1, 5, 17, 85, 293, 881, 1465, 4405, 4981, 14977, 24905, 74885, 258133, 1290665, 4388261, 21941305]

約数ペア:

[(1, 21941305), (5, 4388261), (17, 1290665), (85, 258133), (293, 74885), (881, 24905), (1465, 14977), (4405, 4981)]