20971814

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:332

約数の個数: 32

約数和(自身を含む): 34560000

約数和(自身を除く): 13588186

約数列:

[1, 2, 23, 29, 46, 58, 79, 158, 199, 398, 667, 1334, 1817, 2291, 3634, 4577, 4582, 5771, 9154, 11542, 15721, 31442, 52693, 105386, 132733, 265466, 361583, 455909, 723166, 911818, 10485907, 20971814]

約数ペア:

[(1, 20971814), (2, 10485907), (23, 911818), (29, 723166), (46, 455909), (58, 361583), (79, 265466), (158, 132733), (199, 105386), (398, 52693), (667, 31442), (1334, 15721), (1817, 11542), (2291, 9154), (3634, 5771), (4577, 4582)]