12991035

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{18427}}^1$

素因数の和:18482

約数の個数: 16

約数和(自身を含む): 21229056

約数和(自身を除く): 8238021

約数列:

[1, 3, 5, 15, 47, 141, 235, 705, 18427, 55281, 92135, 276405, 866069, 2598207, 4330345, 12991035]

約数ペア:

[(1, 12991035), (3, 4330345), (5, 2598207), (15, 866069), (47, 276405), (141, 92135), (235, 55281), (705, 18427)]