42547239

素因数分解:

$3^2\times 7^2\times {\mathrm{96479}}^1$

素因数の和:96499

約数の個数: 18

約数和(自身を含む): 71491680

約数和(自身を除く): 28944441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 96479, 289437, 675353, 868311, 2026059, 4727471, 6078177, 14182413, 42547239]

約数ペア:

[(1, 42547239), (3, 14182413), (7, 6078177), (9, 4727471), (21, 2026059), (49, 868311), (63, 675353), (147, 289437), (441, 96479)]