21912856

素因数分解:

$2^3\times 7^1\times {\mathrm{391301}}^1$

素因数の和:391314

約数の個数: 16

約数和(自身を含む): 46956240

約数和(自身を除く): 25043384

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 391301, 782602, 1565204, 2739107, 3130408, 5478214, 10956428, 21912856]

約数ペア:

[(1, 21912856), (2, 10956428), (4, 5478214), (7, 3130408), (8, 2739107), (14, 1565204), (28, 782602), (56, 391301)]