18876872

素因数分解:

$2^3\times 7^1\times {\mathrm{521}}^1\times {\mathrm{647}}^1$

素因数の和:1181

約数の個数: 32

約数和(自身を含む): 40590720

約数和(自身を除く): 21713848

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 521, 647, 1042, 1294, 2084, 2588, 3647, 4168, 4529, 5176, 7294, 9058, 14588, 18116, 29176, 36232, 337087, 674174, 1348348, 2359609, 2696696, 4719218, 9438436, 18876872]

約数ペア:

[(1, 18876872), (2, 9438436), (4, 4719218), (7, 2696696), (8, 2359609), (14, 1348348), (28, 674174), (56, 337087), (521, 36232), (647, 29176), (1042, 18116), (1294, 14588), (2084, 9058), (2588, 7294), (3647, 5176), (4168, 4529)]