18893235

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{2381}}^1$

素因数の和:2435

約数の個数: 24

約数和(自身を含む): 31613904

約数和(自身を除く): 12720669

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 529, 1587, 2381, 2645, 7143, 7935, 11905, 35715, 54763, 164289, 273815, 821445, 1259549, 3778647, 6297745, 18893235]

約数ペア:

[(1, 18893235), (3, 6297745), (5, 3778647), (15, 1259549), (23, 821445), (69, 273815), (115, 164289), (345, 54763), (529, 35715), (1587, 11905), (2381, 7935), (2645, 7143)]