28525491

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{223}}^1\times {\mathrm{233}}^1$

素因数の和:523

約数の個数: 24

約数和(自身を含む): 42247296

約数和(自身を除く): 13721805

約数列:

[1, 3, 9, 61, 183, 223, 233, 549, 669, 699, 2007, 2097, 13603, 14213, 40809, 42639, 51959, 122427, 127917, 155877, 467631, 3169499, 9508497, 28525491]

約数ペア:

[(1, 28525491), (3, 9508497), (9, 3169499), (61, 467631), (183, 155877), (223, 127917), (233, 122427), (549, 51959), (669, 42639), (699, 40809), (2007, 14213), (2097, 13603)]