21131397964

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{2081}}^1\times {\mathrm{54013}}^1$

素因数の和:56145

約数の個数: 24

約数和(自身を含む): 37785601728

約数和(自身を除く): 16654203764

約数列:

[1, 2, 4, 47, 94, 188, 2081, 4162, 8324, 54013, 97807, 108026, 195614, 216052, 391228, 2538611, 5077222, 10154444, 112401053, 224802106, 449604212, 5282849491, 10565698982, 21131397964]

約数ペア:

[(1, 21131397964), (2, 10565698982), (4, 5282849491), (47, 449604212), (94, 224802106), (188, 112401053), (2081, 10154444), (4162, 5077222), (8324, 2538611), (54013, 391228), (97807, 216052), (108026, 195614)]