18199490

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{44389}}^1$

素因数の和:44437

約数の個数: 16

約数和(自身を含む): 33558840

約数和(自身を除く): 15359350

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 44389, 88778, 221945, 443890, 1819949, 3639898, 9099745, 18199490]

約数ペア:

[(1, 18199490), (2, 9099745), (5, 3639898), (10, 1819949), (41, 443890), (82, 221945), (205, 88778), (410, 44389)]