18988490

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{111697}}^1$

素因数の和:111721

約数の個数: 16

約数和(自身を含む): 36190152

約数和(自身を除く): 17201662

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 111697, 223394, 558485, 1116970, 1898849, 3797698, 9494245, 18988490]

約数ペア:

[(1, 18988490), (2, 9494245), (5, 3797698), (10, 1898849), (17, 1116970), (34, 558485), (85, 223394), (170, 111697)]