25871157

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{311}}^1$

素因数の和:415

約数の個数: 40

約数和(自身を含む): 42282240

約数和(自身を除く): 16411083

約数列:

[1, 3, 9, 13, 27, 39, 79, 81, 117, 237, 311, 351, 711, 933, 1027, 1053, 2133, 2799, 3081, 4043, 6399, 8397, 9243, 12129, 24569, 25191, 27729, 36387, 73707, 83187, 109161, 221121, 319397, 327483, 663363, 958191, 1990089, 2874573, 8623719, 25871157]

約数ペア:

[(1, 25871157), (3, 8623719), (9, 2874573), (13, 1990089), (27, 958191), (39, 663363), (79, 327483), (81, 319397), (117, 221121), (237, 109161), (311, 83187), (351, 73707), (711, 36387), (933, 27729), (1027, 25191), (1053, 24569), (2133, 12129), (2799, 9243), (3081, 8397), (4043, 6399)]