18998290

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{99991}}^1$

素因数の和:100017

約数の個数: 16

約数和(自身を含む): 35997120

約数和(自身を除く): 16998830

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 99991, 199982, 499955, 999910, 1899829, 3799658, 9499145, 18998290]

約数ペア:

[(1, 18998290), (2, 9499145), (5, 3799658), (10, 1899829), (19, 999910), (38, 499955), (95, 199982), (190, 99991)]