3987809

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:125

約数の個数: 32

約数和(自身を含む): 5308416

約数和(自身を除く): 1320607

約数列:

[1, 7, 17, 23, 31, 47, 119, 161, 217, 329, 391, 527, 713, 799, 1081, 1457, 2737, 3689, 4991, 5593, 7567, 10199, 12121, 18377, 24769, 33511, 84847, 128639, 173383, 234577, 569687, 3987809]

約数ペア:

[(1, 3987809), (7, 569687), (17, 234577), (23, 173383), (31, 128639), (47, 84847), (119, 33511), (161, 24769), (217, 18377), (329, 12121), (391, 10199), (527, 7567), (713, 5593), (799, 4991), (1081, 3689), (1457, 2737)]