27900607

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:287

約数の個数: 24

約数和(自身を含む): 34393632

約数和(自身を除く): 6493025

約数列:

[1, 7, 19, 61, 133, 181, 361, 427, 1159, 1267, 2527, 3439, 8113, 11041, 22021, 24073, 65341, 77287, 154147, 209779, 457387, 1468453, 3985801, 27900607]

約数ペア:

[(1, 27900607), (7, 3985801), (19, 1468453), (61, 457387), (133, 209779), (181, 154147), (361, 77287), (427, 65341), (1159, 24073), (1267, 22021), (2527, 11041), (3439, 8113)]