21790868

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{449}}^1\times {\mathrm{1103}}^1$

素因数の和:1567

約数の個数: 24

約数和(自身を含む): 41731200

約数和(自身を除く): 19940332

約数列:

[1, 2, 4, 11, 22, 44, 449, 898, 1103, 1796, 2206, 4412, 4939, 9878, 12133, 19756, 24266, 48532, 495247, 990494, 1980988, 5447717, 10895434, 21790868]

約数ペア:

[(1, 21790868), (2, 10895434), (4, 5447717), (11, 1980988), (22, 990494), (44, 495247), (449, 48532), (898, 24266), (1103, 19756), (1796, 12133), (2206, 9878), (4412, 4939)]