21895478

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{4463}}^1$

素因数の和:4699

約数の個数: 16

約数和(自身を含む): 35997696

約数和(自身を除く): 14102218

約数列:

[1, 2, 11, 22, 223, 446, 2453, 4463, 4906, 8926, 49093, 98186, 995249, 1990498, 10947739, 21895478]

約数ペア:

[(1, 21895478), (2, 10947739), (11, 1990498), (22, 995249), (223, 98186), (446, 49093), (2453, 8926), (4463, 4906)]