42121405

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1\times {\mathrm{821}}^1$

素因数の和:1188

約数の個数: 16

約数和(自身を含む): 52397568

約数和(自身を除く): 10276163

約数列:

[1, 5, 31, 155, 331, 821, 1655, 4105, 10261, 25451, 51305, 127255, 271751, 1358755, 8424281, 42121405]

約数ペア:

[(1, 42121405), (5, 8424281), (31, 1358755), (155, 271751), (331, 127255), (821, 51305), (1655, 25451), (4105, 10261)]