20646868

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{15137}}^1$

素因数の和:15183

約数の個数: 24

約数和(自身を含む): 40690944

約数和(自身を除く): 20044076

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 124, 341, 682, 1364, 15137, 30274, 60548, 166507, 333014, 469247, 666028, 938494, 1876988, 5161717, 10323434, 20646868]

約数ペア:

[(1, 20646868), (2, 10323434), (4, 5161717), (11, 1876988), (22, 938494), (31, 666028), (44, 469247), (62, 333014), (124, 166507), (341, 60548), (682, 30274), (1364, 15137)]