20512139778

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{87658717}}^1$

素因数の和:87658738

約数の個数: 24

約数和(自身を含む): 47861660028

約数和(自身を除く): 27349520250

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 87658717, 175317434, 262976151, 525952302, 788928453, 1139563321, 1577856906, 2279126642, 3418689963, 6837379926, 10256069889, 20512139778]

約数ペア:

[(1, 20512139778), (2, 10256069889), (3, 6837379926), (6, 3418689963), (9, 2279126642), (13, 1577856906), (18, 1139563321), (26, 788928453), (39, 525952302), (78, 262976151), (117, 175317434), (234, 87658717)]