21080574

素因数分解:

$2^1\times 3^4\times {\mathrm{130127}}^1$

素因数の和:130141

約数の個数: 20

約数和(自身を含む): 47236464

約数和(自身を除く): 26155890

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 130127, 260254, 390381, 780762, 1171143, 2342286, 3513429, 7026858, 10540287, 21080574]

約数ペア:

[(1, 21080574), (2, 10540287), (3, 7026858), (6, 3513429), (9, 2342286), (18, 1171143), (27, 780762), (54, 390381), (81, 260254), (162, 130127)]