20676812

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{73}}^1\times {\mathrm{419}}^1$

素因数の和:522

約数の個数: 36

約数和(自身を含む): 39813480

約数和(自身を除く): 19136668

約数列:

[1, 2, 4, 13, 26, 52, 73, 146, 169, 292, 338, 419, 676, 838, 949, 1676, 1898, 3796, 5447, 10894, 12337, 21788, 24674, 30587, 49348, 61174, 70811, 122348, 141622, 283244, 397631, 795262, 1590524, 5169203, 10338406, 20676812]

約数ペア:

[(1, 20676812), (2, 10338406), (4, 5169203), (13, 1590524), (26, 795262), (52, 397631), (73, 283244), (146, 141622), (169, 122348), (292, 70811), (338, 61174), (419, 49348), (676, 30587), (838, 24674), (949, 21788), (1676, 12337), (1898, 10894), (3796, 5447)]