21109722

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1$

素因数の和:227

約数の個数: 64

約数和(自身を含む): 47416320

約数和(自身を除く): 26306598

約数列:

[1, 2, 3, 6, 19, 23, 38, 46, 57, 69, 83, 97, 114, 138, 166, 194, 249, 291, 437, 498, 582, 874, 1311, 1577, 1843, 1909, 2231, 2622, 3154, 3686, 3818, 4462, 4731, 5529, 5727, 6693, 8051, 9462, 11058, 11454, 13386, 16102, 24153, 36271, 42389, 48306, 72542, 84778, 108813, 127167, 152969, 185173, 217626, 254334, 305938, 370346, 458907, 555519, 917814, 1111038, 3518287, 7036574, 10554861, 21109722]

約数ペア:

[(1, 21109722), (2, 10554861), (3, 7036574), (6, 3518287), (19, 1111038), (23, 917814), (38, 555519), (46, 458907), (57, 370346), (69, 305938), (83, 254334), (97, 217626), (114, 185173), (138, 152969), (166, 127167), (194, 108813), (249, 84778), (291, 72542), (437, 48306), (498, 42389), (582, 36271), (874, 24153), (1311, 16102), (1577, 13386), (1843, 11454), (1909, 11058), (2231, 9462), (2622, 8051), (3154, 6693), (3686, 5727), (3818, 5529), (4462, 4731)]