21000340805

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{229}}^1\times {\mathrm{56783}}^1$

素因数の和:57053

約数の個数: 32

約数和(自身を含む): 28210291200

約数和(自身を除く): 7209950395

約数列:

[1, 5, 17, 19, 85, 95, 229, 323, 1145, 1615, 3893, 4351, 19465, 21755, 56783, 73967, 283915, 369835, 965311, 1078877, 4826555, 5394385, 13003307, 18340909, 65016535, 91704545, 221056219, 247062833, 1105281095, 1235314165, 4200068161, 21000340805]

約数ペア:

[(1, 21000340805), (5, 4200068161), (17, 1235314165), (19, 1105281095), (85, 247062833), (95, 221056219), (229, 91704545), (323, 65016535), (1145, 18340909), (1615, 13003307), (3893, 5394385), (4351, 4826555), (19465, 1078877), (21755, 965311), (56783, 369835), (73967, 283915)]