217966119

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{197}}^1$

素因数の和:332

約数の個数: 64

約数和(自身を含む): 364953600

約数和(自身を除く): 146987481

約数列:

[1, 3, 7, 19, 21, 47, 57, 59, 133, 141, 177, 197, 329, 399, 413, 591, 893, 987, 1121, 1239, 1379, 2679, 2773, 3363, 3743, 4137, 6251, 7847, 8319, 9259, 11229, 11623, 18753, 19411, 23541, 26201, 27777, 34869, 52687, 58233, 64813, 78603, 81361, 158061, 175921, 194439, 220837, 244083, 368809, 527763, 546281, 662511, 1106427, 1231447, 1545859, 1638843, 3694341, 3823967, 4637577, 10379339, 11471901, 31138017, 72655373, 217966119]

約数ペア:

[(1, 217966119), (3, 72655373), (7, 31138017), (19, 11471901), (21, 10379339), (47, 4637577), (57, 3823967), (59, 3694341), (133, 1638843), (141, 1545859), (177, 1231447), (197, 1106427), (329, 662511), (399, 546281), (413, 527763), (591, 368809), (893, 244083), (987, 220837), (1121, 194439), (1239, 175921), (1379, 158061), (2679, 81361), (2773, 78603), (3363, 64813), (3743, 58233), (4137, 52687), (6251, 34869), (7847, 27777), (8319, 26201), (9259, 23541), (11229, 19411), (11623, 18753)]