28335573

素因数分解:

$3^2\times 7^3\times {\mathrm{67}}^1\times {\mathrm{137}}^1$

素因数の和:231

約数の個数: 48

約数和(自身を含む): 48796800

約数和(自身を除く): 20461227

約数列:

[1, 3, 7, 9, 21, 49, 63, 67, 137, 147, 201, 343, 411, 441, 469, 603, 959, 1029, 1233, 1407, 2877, 3087, 3283, 4221, 6713, 8631, 9179, 9849, 20139, 22981, 27537, 29547, 46991, 60417, 64253, 68943, 82611, 140973, 192759, 206829, 422919, 449771, 578277, 1349313, 3148397, 4047939, 9445191, 28335573]

約数ペア:

[(1, 28335573), (3, 9445191), (7, 4047939), (9, 3148397), (21, 1349313), (49, 578277), (63, 449771), (67, 422919), (137, 206829), (147, 192759), (201, 140973), (343, 82611), (411, 68943), (441, 64253), (469, 60417), (603, 46991), (959, 29547), (1029, 27537), (1233, 22981), (1407, 20139), (2877, 9849), (3087, 9179), (3283, 8631), (4221, 6713)]