21221282008

素因数分解:

$2^3\times {\mathrm{2837}}^1\times {\mathrm{935023}}^1$

素因数の和:937866

約数の個数: 16

約数和(自身を含む): 39803971680

約数和(自身を除く): 18582689672

約数列:

[1, 2, 4, 8, 2837, 5674, 11348, 22696, 935023, 1870046, 3740092, 7480184, 2652660251, 5305320502, 10610641004, 21221282008]

約数ペア:

[(1, 21221282008), (2, 10610641004), (4, 5305320502), (8, 2652660251), (2837, 7480184), (5674, 3740092), (11348, 1870046), (22696, 935023)]