25217709

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1$

素因数の和:361

約数の個数: 32

約数和(自身を含む): 38154240

約数和(自身を除く): 12936531

約数列:

[1, 3, 11, 33, 47, 71, 141, 213, 229, 517, 687, 781, 1551, 2343, 2519, 3337, 7557, 10011, 10763, 16259, 32289, 36707, 48777, 110121, 118393, 178849, 355179, 536547, 764173, 2292519, 8405903, 25217709]

約数ペア:

[(1, 25217709), (3, 8405903), (11, 2292519), (33, 764173), (47, 536547), (71, 355179), (141, 178849), (213, 118393), (229, 110121), (517, 48777), (687, 36707), (781, 32289), (1551, 16259), (2343, 10763), (2519, 10011), (3337, 7557)]