19811710

素因数分解:

$2^1\times 5^1\times {\mathrm{1279}}^1\times {\mathrm{1549}}^1$

素因数の和:2835

約数の個数: 16

約数和(自身を含む): 35712000

約数和(自身を除く): 15900290

約数列:

[1, 2, 5, 10, 1279, 1549, 2558, 3098, 6395, 7745, 12790, 15490, 1981171, 3962342, 9905855, 19811710]

約数ペア:

[(1, 19811710), (2, 9905855), (5, 3962342), (10, 1981171), (1279, 15490), (1549, 12790), (2558, 7745), (3098, 6395)]