21177767

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1213}}^1$

素因数の和:1322

約数の個数: 16

約数和(自身を含む): 24474240

約数和(自身を除く): 3296473

約数列:

[1, 13, 17, 79, 221, 1027, 1213, 1343, 15769, 17459, 20621, 95827, 268073, 1245751, 1629059, 21177767]

約数ペア:

[(1, 21177767), (13, 1629059), (17, 1245751), (79, 268073), (221, 95827), (1027, 20621), (1213, 17459), (1343, 15769)]