18138605

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{3847}}^1$

素因数の和:3916

約数の個数: 16

約数和(自身を含む): 23272704

約数和(自身を除く): 5134099

約数列:

[1, 5, 23, 41, 115, 205, 943, 3847, 4715, 19235, 88481, 157727, 442405, 788635, 3627721, 18138605]

約数ペア:

[(1, 18138605), (5, 3627721), (23, 788635), (41, 442405), (115, 157727), (205, 88481), (943, 19235), (3847, 4715)]