18993035

素因数分解:

$5^1\times {\mathrm{107}}^1\times {\mathrm{131}}^1\times {\mathrm{271}}^1$

素因数の和:514

約数の個数: 16

約数和(自身を含む): 23265792

約数和(自身を除く): 4272757

約数列:

[1, 5, 107, 131, 271, 535, 655, 1355, 14017, 28997, 35501, 70085, 144985, 177505, 3798607, 18993035]

約数ペア:

[(1, 18993035), (5, 3798607), (107, 177505), (131, 144985), (271, 70085), (535, 35501), (655, 28997), (1355, 14017)]