21344554

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1$

素因数の和:331

約数の個数: 64

約数和(自身を含む): 43794432

約数和(自身を除く): 22449878

約数列:

[1, 2, 7, 11, 14, 17, 22, 31, 34, 62, 77, 119, 154, 187, 217, 238, 263, 341, 374, 434, 526, 527, 682, 1054, 1309, 1841, 2387, 2618, 2893, 3682, 3689, 4471, 4774, 5786, 5797, 7378, 8153, 8942, 11594, 16306, 20251, 31297, 40502, 40579, 49181, 57071, 62594, 81158, 89683, 98362, 114142, 138601, 179366, 277202, 344267, 627781, 688534, 970207, 1255562, 1524611, 1940414, 3049222, 10672277, 21344554]

約数ペア:

[(1, 21344554), (2, 10672277), (7, 3049222), (11, 1940414), (14, 1524611), (17, 1255562), (22, 970207), (31, 688534), (34, 627781), (62, 344267), (77, 277202), (119, 179366), (154, 138601), (187, 114142), (217, 98362), (238, 89683), (263, 81158), (341, 62594), (374, 57071), (434, 49181), (526, 40579), (527, 40502), (682, 31297), (1054, 20251), (1309, 16306), (1841, 11594), (2387, 8942), (2618, 8153), (2893, 7378), (3682, 5797), (3689, 5786), (4471, 4774)]