20903404

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{4211}}^1$

素因数の和:4305

約数の個数: 24

約数和(自身を含む): 39272688

約数和(自身を除く): 18369284

約数列:

[1, 2, 4, 17, 34, 68, 73, 146, 292, 1241, 2482, 4211, 4964, 8422, 16844, 71587, 143174, 286348, 307403, 614806, 1229612, 5225851, 10451702, 20903404]

約数ペア:

[(1, 20903404), (2, 10451702), (4, 5225851), (17, 1229612), (34, 614806), (68, 307403), (73, 286348), (146, 143174), (292, 71587), (1241, 16844), (2482, 8422), (4211, 4964)]