18965285

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{347}}^1\times {\mathrm{643}}^1$

素因数の和:1012

約数の個数: 16

約数和(自身を含む): 24204096

約数和(自身を除く): 5238811

約数列:

[1, 5, 17, 85, 347, 643, 1735, 3215, 5899, 10931, 29495, 54655, 223121, 1115605, 3793057, 18965285]

約数ペア:

[(1, 18965285), (5, 3793057), (17, 1115605), (85, 223121), (347, 54655), (643, 29495), (1735, 10931), (3215, 5899)]