25815321

素因数分解:

$3^3\times 7^1\times {\mathrm{137}}^1\times {\mathrm{997}}^1$

素因数の和:1150

約数の個数: 32

約数和(自身を含む): 44071680

約数和(自身を除く): 18256359

約数列:

[1, 3, 7, 9, 21, 27, 63, 137, 189, 411, 959, 997, 1233, 2877, 2991, 3699, 6979, 8631, 8973, 20937, 25893, 26919, 62811, 136589, 188433, 409767, 956123, 1229301, 2868369, 3687903, 8605107, 25815321]

約数ペア:

[(1, 25815321), (3, 8605107), (7, 3687903), (9, 2868369), (21, 1229301), (27, 956123), (63, 409767), (137, 188433), (189, 136589), (411, 62811), (959, 26919), (997, 25893), (1233, 20937), (2877, 8973), (2991, 8631), (3699, 6979)]