20528228

素因数分解:

$2^2\times 7^1\times {\mathrm{691}}^1\times {\mathrm{1061}}^1$

素因数の和:1763

約数の個数: 24

約数和(自身を含む): 41154624

約数和(自身を除く): 20626396

約数列:

[1, 2, 4, 7, 14, 28, 691, 1061, 1382, 2122, 2764, 4244, 4837, 7427, 9674, 14854, 19348, 29708, 733151, 1466302, 2932604, 5132057, 10264114, 20528228]

約数ペア:

[(1, 20528228), (2, 10264114), (4, 5132057), (7, 2932604), (14, 1466302), (28, 733151), (691, 29708), (1061, 19348), (1382, 14854), (2122, 9674), (2764, 7427), (4244, 4837)]