249647517

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{2857}}^1$

素因数の和:2962

約数の個数: 48

約数和(自身を含む): 439903360

約数和(自身を除く): 190255843

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 73, 133, 171, 219, 399, 511, 657, 1197, 1387, 1533, 2857, 4161, 4599, 8571, 9709, 12483, 19999, 25713, 29127, 54283, 59997, 87381, 162849, 179991, 208561, 379981, 488547, 625683, 1139943, 1459927, 1877049, 3419829, 3962659, 4379781, 11887977, 13139343, 27738613, 35663931, 83215839, 249647517]

約数ペア:

[(1, 249647517), (3, 83215839), (7, 35663931), (9, 27738613), (19, 13139343), (21, 11887977), (57, 4379781), (63, 3962659), (73, 3419829), (133, 1877049), (171, 1459927), (219, 1139943), (399, 625683), (511, 488547), (657, 379981), (1197, 208561), (1387, 179991), (1533, 162849), (2857, 87381), (4161, 59997), (4599, 54283), (8571, 29127), (9709, 25713), (12483, 19999)]