19899988

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{151}}^1\times {\mathrm{701}}^1$

素因数の和:903

約数の個数: 24

約数和(自身を含む): 35852544

約数和(自身を除く): 15952556

約数列:

[1, 2, 4, 47, 94, 151, 188, 302, 604, 701, 1402, 2804, 7097, 14194, 28388, 32947, 65894, 105851, 131788, 211702, 423404, 4974997, 9949994, 19899988]

約数ペア:

[(1, 19899988), (2, 9949994), (4, 4974997), (47, 423404), (94, 211702), (151, 131788), (188, 105851), (302, 65894), (604, 32947), (701, 28388), (1402, 14194), (2804, 7097)]