19810355

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{6299}}^1$

素因数の和:6358

約数の個数: 16

約数和(自身を含む): 25855200

約数和(自身を除く): 6044845

約数列:

[1, 5, 17, 37, 85, 185, 629, 3145, 6299, 31495, 107083, 233063, 535415, 1165315, 3962071, 19810355]

約数ペア:

[(1, 19810355), (5, 3962071), (17, 1165315), (37, 535415), (85, 233063), (185, 107083), (629, 31495), (3145, 6299)]