21294290

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{45307}}^1$

素因数の和:45361

約数の個数: 16

約数和(自身を含む): 39146112

約数和(自身を除く): 17851822

約数列:

[1, 2, 5, 10, 47, 94, 235, 470, 45307, 90614, 226535, 453070, 2129429, 4258858, 10647145, 21294290]

約数ペア:

[(1, 21294290), (2, 10647145), (5, 4258858), (10, 2129429), (47, 453070), (94, 226535), (235, 90614), (470, 45307)]