16987630

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{397}}^1$

素因数の和:804

約数の個数: 32

約数和(自身を含む): 33527520

約数和(自身を除く): 16539890

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 389, 397, 778, 794, 1945, 1985, 3890, 3970, 4279, 4367, 8558, 8734, 21395, 21835, 42790, 43670, 154433, 308866, 772165, 1544330, 1698763, 3397526, 8493815, 16987630]

約数ペア:

[(1, 16987630), (2, 8493815), (5, 3397526), (10, 1698763), (11, 1544330), (22, 772165), (55, 308866), (110, 154433), (389, 43670), (397, 42790), (778, 21835), (794, 21395), (1945, 8734), (1985, 8558), (3890, 4367), (3970, 4279)]