20916128

素因数分解:

$2^5\times {\mathrm{47}}^1\times {\mathrm{13907}}^1$

素因数の和:13964

約数の個数: 24

約数和(自身を含む): 42057792

約数和(自身を除く): 21141664

約数列:

[1, 2, 4, 8, 16, 32, 47, 94, 188, 376, 752, 1504, 13907, 27814, 55628, 111256, 222512, 445024, 653629, 1307258, 2614516, 5229032, 10458064, 20916128]

約数ペア:

[(1, 20916128), (2, 10458064), (4, 5229032), (8, 2614516), (16, 1307258), (32, 653629), (47, 445024), (94, 222512), (188, 111256), (376, 55628), (752, 27814), (1504, 13907)]