18968469

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{3221}}^1$

素因数の和:3388

約数の個数: 16

約数和(自身を含む): 27425664

約数和(自身を除く): 8457195

約数列:

[1, 3, 13, 39, 151, 453, 1963, 3221, 5889, 9663, 41873, 125619, 486371, 1459113, 6322823, 18968469]

約数ペア:

[(1, 18968469), (3, 6322823), (13, 1459113), (39, 486371), (151, 125619), (453, 41873), (1963, 9663), (3221, 5889)]