209891052

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{11731}}^1$

素因数の和:11819

約数の個数: 72

約数和(自身を含む): 614944512

約数和(自身を除く): 405053460

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 71, 84, 126, 142, 213, 252, 284, 426, 497, 639, 852, 994, 1278, 1491, 1988, 2556, 2982, 4473, 5964, 8946, 11731, 17892, 23462, 35193, 46924, 70386, 82117, 105579, 140772, 164234, 211158, 246351, 328468, 422316, 492702, 739053, 832901, 985404, 1478106, 1665802, 2498703, 2956212, 3331604, 4997406, 5830307, 7496109, 9994812, 11660614, 14992218, 17490921, 23321228, 29984436, 34981842, 52472763, 69963684, 104945526, 209891052]

約数ペア:

[(1, 209891052), (2, 104945526), (3, 69963684), (4, 52472763), (6, 34981842), (7, 29984436), (9, 23321228), (12, 17490921), (14, 14992218), (18, 11660614), (21, 9994812), (28, 7496109), (36, 5830307), (42, 4997406), (63, 3331604), (71, 2956212), (84, 2498703), (126, 1665802), (142, 1478106), (213, 985404), (252, 832901), (284, 739053), (426, 492702), (497, 422316), (639, 328468), (852, 246351), (994, 211158), (1278, 164234), (1491, 140772), (1988, 105579), (2556, 82117), (2982, 70386), (4473, 46924), (5964, 35193), (8946, 23462), (11731, 17892)]