25201239

素因数分解:

$3^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{1289}}^1$

素因数の和:1332

約数の個数: 32

約数和(自身を含む): 41280000

約数和(自身を除く): 16078761

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 343, 399, 931, 1029, 1289, 2793, 3867, 6517, 9023, 19551, 24491, 27069, 63161, 73473, 171437, 189483, 442127, 514311, 1200059, 1326381, 3600177, 8400413, 25201239]

約数ペア:

[(1, 25201239), (3, 8400413), (7, 3600177), (19, 1326381), (21, 1200059), (49, 514311), (57, 442127), (133, 189483), (147, 171437), (343, 73473), (399, 63161), (931, 27069), (1029, 24491), (1289, 19551), (2793, 9023), (3867, 6517)]