25970217

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{379}}^1$

素因数の和:653

約数の個数: 32

約数和(自身を含む): 42900480

約数和(自身を除く): 16930263

約数列:

[1, 3, 7, 13, 21, 39, 91, 251, 273, 379, 753, 1137, 1757, 2653, 3263, 4927, 5271, 7959, 9789, 14781, 22841, 34489, 68523, 95129, 103467, 285387, 665903, 1236677, 1997709, 3710031, 8656739, 25970217]

約数ペア:

[(1, 25970217), (3, 8656739), (7, 3710031), (13, 1997709), (21, 1236677), (39, 665903), (91, 285387), (251, 103467), (273, 95129), (379, 68523), (753, 34489), (1137, 22841), (1757, 14781), (2653, 9789), (3263, 7959), (4927, 5271)]