21551275148

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{5281}}^1\times {\mathrm{78479}}^1$

素因数の和:83777

約数の個数: 24

約数和(自身を含む): 40624073280

約数和(自身を除く): 19072798132

約数列:

[1, 2, 4, 13, 26, 52, 5281, 10562, 21124, 68653, 78479, 137306, 156958, 274612, 313916, 1020227, 2040454, 4080908, 414447599, 828895198, 1657790396, 5387818787, 10775637574, 21551275148]

約数ペア:

[(1, 21551275148), (2, 10775637574), (4, 5387818787), (13, 1657790396), (26, 828895198), (52, 414447599), (5281, 4080908), (10562, 2040454), (21124, 1020227), (68653, 313916), (78479, 274612), (137306, 156958)]