25707213

素因数分解:

$3^5\times 7^2\times {\mathrm{17}}^1\times {\mathrm{127}}^1$

素因数の和:173

約数の個数: 72

約数和(自身を含む): 47803392

約数和(自身を除く): 22096179

約数列:

[1, 3, 7, 9, 17, 21, 27, 49, 51, 63, 81, 119, 127, 147, 153, 189, 243, 357, 381, 441, 459, 567, 833, 889, 1071, 1143, 1323, 1377, 1701, 2159, 2499, 2667, 3213, 3429, 3969, 4131, 6223, 6477, 7497, 8001, 9639, 10287, 11907, 15113, 18669, 19431, 22491, 24003, 28917, 30861, 45339, 56007, 58293, 67473, 72009, 105791, 136017, 168021, 174879, 202419, 216027, 317373, 408051, 504063, 524637, 952119, 1224153, 1512189, 2856357, 3672459, 8569071, 25707213]

約数ペア:

[(1, 25707213), (3, 8569071), (7, 3672459), (9, 2856357), (17, 1512189), (21, 1224153), (27, 952119), (49, 524637), (51, 504063), (63, 408051), (81, 317373), (119, 216027), (127, 202419), (147, 174879), (153, 168021), (189, 136017), (243, 105791), (357, 72009), (381, 67473), (441, 58293), (459, 56007), (567, 45339), (833, 30861), (889, 28917), (1071, 24003), (1143, 22491), (1323, 19431), (1377, 18669), (1701, 15113), (2159, 11907), (2499, 10287), (2667, 9639), (3213, 8001), (3429, 7497), (3969, 6477), (4131, 6223)]