20798864

素因数分解:

$2^4\times {\mathrm{251}}^1\times {\mathrm{5179}}^1$

素因数の和:5438

約数の個数: 20

約数和(自身を含む): 40466160

約数和(自身を除く): 19667296

約数列:

[1, 2, 4, 8, 16, 251, 502, 1004, 2008, 4016, 5179, 10358, 20716, 41432, 82864, 1299929, 2599858, 5199716, 10399432, 20798864]

約数ペア:

[(1, 20798864), (2, 10399432), (4, 5199716), (8, 2599858), (16, 1299929), (251, 82864), (502, 41432), (1004, 20716), (2008, 10358), (4016, 5179)]