19685289

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{947}}^1$

素因数の和:1017

約数の個数: 24

約数和(自身を含む): 29145312

約数和(自身を除く): 9460023

約数列:

[1, 3, 13, 39, 41, 123, 169, 507, 533, 947, 1599, 2841, 6929, 12311, 20787, 36933, 38827, 116481, 160043, 480129, 504751, 1514253, 6561763, 19685289]

約数ペア:

[(1, 19685289), (3, 6561763), (13, 1514253), (39, 504751), (41, 480129), (123, 160043), (169, 116481), (507, 38827), (533, 36933), (947, 20787), (1599, 12311), (2841, 6929)]