20908984

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{55609}}^1$

素因数の和:55662

約数の個数: 16

約数和(自身を含む): 40039200

約数和(自身を除く): 19130216

約数列:

[1, 2, 4, 8, 47, 94, 188, 376, 55609, 111218, 222436, 444872, 2613623, 5227246, 10454492, 20908984]

約数ペア:

[(1, 20908984), (2, 10454492), (4, 5227246), (8, 2613623), (47, 444872), (94, 222436), (188, 111218), (376, 55609)]