21100390

素因数分解:

$2^1\times 5^1\times {\mathrm{1103}}^1\times {\mathrm{1913}}^1$

素因数の和:3023

約数の個数: 16

約数和(自身を含む): 38035008

約数和(自身を除く): 16934618

約数列:

[1, 2, 5, 10, 1103, 1913, 2206, 3826, 5515, 9565, 11030, 19130, 2110039, 4220078, 10550195, 21100390]

約数ペア:

[(1, 21100390), (2, 10550195), (5, 4220078), (10, 2110039), (1103, 19130), (1913, 11030), (2206, 9565), (3826, 5515)]