25865217

素因数分解:

$3^3\times 7^1\times {\mathrm{107}}^1\times {\mathrm{1279}}^1$

素因数の和:1402

約数の個数: 32

約数和(自身を含む): 44236800

約数和(自身を除く): 18371583

約数列:

[1, 3, 7, 9, 21, 27, 63, 107, 189, 321, 749, 963, 1279, 2247, 2889, 3837, 6741, 8953, 11511, 20223, 26859, 34533, 80577, 136853, 241731, 410559, 957971, 1231677, 2873913, 3695031, 8621739, 25865217]

約数ペア:

[(1, 25865217), (3, 8621739), (7, 3695031), (9, 2873913), (21, 1231677), (27, 957971), (63, 410559), (107, 241731), (189, 136853), (321, 80577), (749, 34533), (963, 26859), (1279, 20223), (2247, 11511), (2889, 8953), (3837, 6741)]