28399217

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{1931}}^1$

素因数の和:2140

約数の個数: 16

約数和(自身を含む): 35610624

約数和(自身を除く): 7211407

約数列:

[1, 7, 11, 77, 191, 1337, 1931, 2101, 13517, 14707, 21241, 148687, 368821, 2581747, 4057031, 28399217]

約数ペア:

[(1, 28399217), (7, 4057031), (11, 2581747), (77, 368821), (191, 148687), (1337, 21241), (1931, 14707), (2101, 13517)]