20409855

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59159}}^1$

素因数の和:59190

約数の個数: 16

約数和(自身を含む): 34076160

約数和(自身を除く): 13666305

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 59159, 177477, 295795, 887385, 1360657, 4081971, 6803285, 20409855]

約数ペア:

[(1, 20409855), (3, 6803285), (5, 4081971), (15, 1360657), (23, 887385), (69, 295795), (115, 177477), (345, 59159)]