2567943

素因数分解:

$3^4\times 7^2\times {\mathrm{647}}^1$

素因数の和:673

約数の個数: 30

約数和(自身を含む): 4469256

約数和(自身を除く): 1901313

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 647, 1323, 1941, 3969, 4529, 5823, 13587, 17469, 31703, 40761, 52407, 95109, 122283, 285327, 366849, 855981, 2567943]

約数ペア:

[(1, 2567943), (3, 855981), (7, 366849), (9, 285327), (21, 122283), (27, 95109), (49, 52407), (63, 40761), (81, 31703), (147, 17469), (189, 13587), (441, 5823), (567, 4529), (647, 3969), (1323, 1941)]