31978478

素因数分解:

$2^1\times 7^2\times {\mathrm{151}}^1\times {\mathrm{2161}}^1$

素因数の和:2328

約数の個数: 24

約数和(自身を含む): 56194704

約数和(自身を除く): 24216226

約数列:

[1, 2, 7, 14, 49, 98, 151, 302, 1057, 2114, 2161, 4322, 7399, 14798, 15127, 30254, 105889, 211778, 326311, 652622, 2284177, 4568354, 15989239, 31978478]

約数ペア:

[(1, 31978478), (2, 15989239), (7, 4568354), (14, 2284177), (49, 652622), (98, 326311), (151, 211778), (302, 105889), (1057, 30254), (2114, 15127), (2161, 14798), (4322, 7399)]