17939201

素因数分解:

$7^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1\times {\mathrm{179}}^1$

素因数の和:428

約数の個数: 16

約数和(自身を含む): 20966400

約数和(自身を除く): 3027199

約数列:

[1, 7, 103, 139, 179, 721, 973, 1253, 14317, 18437, 24881, 100219, 129059, 174167, 2562743, 17939201]

約数ペア:

[(1, 17939201), (7, 2562743), (103, 174167), (139, 129059), (179, 100219), (721, 24881), (973, 18437), (1253, 14317)]