20553776

素因数分解:

$2^4\times {\mathrm{331}}^1\times {\mathrm{3881}}^1$

素因数の和:4220

約数の個数: 20

約数和(自身を含む): 39953544

約数和(自身を除く): 19399768

約数列:

[1, 2, 4, 8, 16, 331, 662, 1324, 2648, 3881, 5296, 7762, 15524, 31048, 62096, 1284611, 2569222, 5138444, 10276888, 20553776]

約数ペア:

[(1, 20553776), (2, 10276888), (4, 5138444), (8, 2569222), (16, 1284611), (331, 62096), (662, 31048), (1324, 15524), (2648, 7762), (3881, 5296)]