20672478

素因数分解:

$2^1\times 3^2\times {\mathrm{83}}^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1$

素因数の和:329

約数の個数: 48

約数和(自身を含む): 46112976

約数和(自身を除く): 25440498

約数列:

[1, 2, 3, 6, 9, 18, 83, 101, 137, 166, 202, 249, 274, 303, 411, 498, 606, 747, 822, 909, 1233, 1494, 1818, 2466, 8383, 11371, 13837, 16766, 22742, 25149, 27674, 34113, 41511, 50298, 68226, 75447, 83022, 102339, 124533, 150894, 204678, 249066, 1148471, 2296942, 3445413, 6890826, 10336239, 20672478]

約数ペア:

[(1, 20672478), (2, 10336239), (3, 6890826), (6, 3445413), (9, 2296942), (18, 1148471), (83, 249066), (101, 204678), (137, 150894), (166, 124533), (202, 102339), (249, 83022), (274, 75447), (303, 68226), (411, 50298), (498, 41511), (606, 34113), (747, 27674), (822, 25149), (909, 22742), (1233, 16766), (1494, 13837), (1818, 11371), (2466, 8383)]