2861649

素因数分解:

$3^4\times 7^3\times {\mathrm{103}}^1$

素因数の和:136

約数の個数: 40

約数和(自身を含む): 5033600

約数和(自身を除く): 2171951

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 103, 147, 189, 309, 343, 441, 567, 721, 927, 1029, 1323, 2163, 2781, 3087, 3969, 5047, 6489, 8343, 9261, 15141, 19467, 27783, 35329, 45423, 58401, 105987, 136269, 317961, 408807, 953883, 2861649]

約数ペア:

[(1, 2861649), (3, 953883), (7, 408807), (9, 317961), (21, 136269), (27, 105987), (49, 58401), (63, 45423), (81, 35329), (103, 27783), (147, 19467), (189, 15141), (309, 9261), (343, 8343), (441, 6489), (567, 5047), (721, 3969), (927, 3087), (1029, 2781), (1323, 2163)]