21748156

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{6389}}^1$

素因数の和:6453

約数の個数: 24

約数和(自身を含む): 40793760

約数和(自身を除く): 19045604

約数列:

[1, 2, 4, 23, 37, 46, 74, 92, 148, 851, 1702, 3404, 6389, 12778, 25556, 146947, 236393, 293894, 472786, 587788, 945572, 5437039, 10874078, 21748156]

約数ペア:

[(1, 21748156), (2, 10874078), (4, 5437039), (23, 945572), (37, 587788), (46, 472786), (74, 293894), (92, 236393), (148, 146947), (851, 25556), (1702, 12778), (3404, 6389)]