21193616

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{28183}}^1$

素因数の和:28238

約数の個数: 20

約数和(自身を含む): 41937792

約数和(自身を除く): 20744176

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 28183, 56366, 112732, 225464, 450928, 1324601, 2649202, 5298404, 10596808, 21193616]

約数ペア:

[(1, 21193616), (2, 10596808), (4, 5298404), (8, 2649202), (16, 1324601), (47, 450928), (94, 225464), (188, 112732), (376, 56366), (752, 28183)]