20087404

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{4409}}^1$

素因数の和:4497

約数の個数: 24

約数和(自身を含む): 37784880

約数和(自身を除く): 17697476

約数列:

[1, 2, 4, 17, 34, 67, 68, 134, 268, 1139, 2278, 4409, 4556, 8818, 17636, 74953, 149906, 295403, 299812, 590806, 1181612, 5021851, 10043702, 20087404]

約数ペア:

[(1, 20087404), (2, 10043702), (4, 5021851), (17, 1181612), (34, 590806), (67, 299812), (68, 295403), (134, 149906), (268, 74953), (1139, 17636), (2278, 8818), (4409, 4556)]