19717180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{140837}}^1$

素因数の和:140853

約数の個数: 24

約数和(自身を含む): 47321568

約数和(自身を除く): 27604388

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 140837, 281674, 563348, 704185, 985859, 1408370, 1971718, 2816740, 3943436, 4929295, 9858590, 19717180]

約数ペア:

[(1, 19717180), (2, 9858590), (4, 4929295), (5, 3943436), (7, 2816740), (10, 1971718), (14, 1408370), (20, 985859), (28, 704185), (35, 563348), (70, 281674), (140, 140837)]