28591507

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{691}}^1$

素因数の和:978

約数の個数: 16

約数和(自身を含む): 34278912

約数和(自身を除く): 5687405

約数列:

[1, 7, 23, 161, 257, 691, 1799, 4837, 5911, 15893, 41377, 111251, 177587, 1243109, 4084501, 28591507]

約数ペア:

[(1, 28591507), (7, 4084501), (23, 1243109), (161, 177587), (257, 111251), (691, 41377), (1799, 15893), (4837, 5911)]