18979926

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{451903}}^1$

素因数の和:451915

約数の個数: 16

約数和(自身を含む): 43382784

約数和(自身を除く): 24402858

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 451903, 903806, 1355709, 2711418, 3163321, 6326642, 9489963, 18979926]

約数ペア:

[(1, 18979926), (2, 9489963), (3, 6326642), (6, 3163321), (7, 2711418), (14, 1355709), (21, 903806), (42, 451903)]