19803410

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{4391}}^1$

素因数の和:4450

約数の個数: 32

約数和(自身を含む): 39844224

約数和(自身を除く): 20040814

約数列:

[1, 2, 5, 10, 11, 22, 41, 55, 82, 110, 205, 410, 451, 902, 2255, 4391, 4510, 8782, 21955, 43910, 48301, 96602, 180031, 241505, 360062, 483010, 900155, 1800310, 1980341, 3960682, 9901705, 19803410]

約数ペア:

[(1, 19803410), (2, 9901705), (5, 3960682), (10, 1980341), (11, 1800310), (22, 900155), (41, 483010), (55, 360062), (82, 241505), (110, 180031), (205, 96602), (410, 48301), (451, 43910), (902, 21955), (2255, 8782), (4391, 4510)]