21268816

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{28283}}^1$

素因数の和:28338

約数の個数: 20

約数和(自身を含む): 42086592

約数和(自身を除く): 20817776

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 28283, 56566, 113132, 226264, 452528, 1329301, 2658602, 5317204, 10634408, 21268816]

約数ペア:

[(1, 21268816), (2, 10634408), (4, 5317204), (8, 2658602), (16, 1329301), (47, 452528), (94, 226264), (188, 113132), (376, 56566), (752, 28283)]