21000882808

素因数分解:

$2^3\times {\mathrm{443}}^1\times {\mathrm{5925757}}^1$

素因数の和:5926206

約数の個数: 16

約数和(自身を含む): 39465548280

約数和(自身を除く): 18464665472

約数列:

[1, 2, 4, 8, 443, 886, 1772, 3544, 5925757, 11851514, 23703028, 47406056, 2625110351, 5250220702, 10500441404, 21000882808]

約数ペア:

[(1, 21000882808), (2, 10500441404), (4, 5250220702), (8, 2625110351), (443, 47406056), (886, 23703028), (1772, 11851514), (3544, 5925757)]