20437335

素因数分解:

$3^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{1451}}^1$

素因数の和:1775

約数の個数: 24

約数和(自身を含む): 35562384

約数和(自身を除く): 15125049

約数列:

[1, 3, 5, 9, 15, 45, 313, 939, 1451, 1565, 2817, 4353, 4695, 7255, 13059, 14085, 21765, 65295, 454163, 1362489, 2270815, 4087467, 6812445, 20437335]

約数ペア:

[(1, 20437335), (3, 6812445), (5, 4087467), (9, 2270815), (15, 1362489), (45, 454163), (313, 65295), (939, 21765), (1451, 14085), (1565, 13059), (2817, 7255), (4353, 4695)]