20698212

素因数分解:

$2^2\times 3^1\times {\mathrm{139}}^1\times {\mathrm{12409}}^1$

素因数の和:12555

約数の個数: 24

約数和(自身を含む): 48647200

約数和(自身を除く): 27948988

約数列:

[1, 2, 3, 4, 6, 12, 139, 278, 417, 556, 834, 1668, 12409, 24818, 37227, 49636, 74454, 148908, 1724851, 3449702, 5174553, 6899404, 10349106, 20698212]

約数ペア:

[(1, 20698212), (2, 10349106), (3, 6899404), (4, 5174553), (6, 3449702), (12, 1724851), (139, 148908), (278, 74454), (417, 49636), (556, 37227), (834, 24818), (1668, 12409)]