19212725

素因数分解:

$5^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1087}}^1$

素因数の和:1205

約数の個数: 24

約数和(自身を含む): 27522048

約数和(自身を除く): 8309323

約数列:

[1, 5, 7, 25, 35, 101, 175, 505, 707, 1087, 2525, 3535, 5435, 7609, 17675, 27175, 38045, 109787, 190225, 548935, 768509, 2744675, 3842545, 19212725]

約数ペア:

[(1, 19212725), (5, 3842545), (7, 2744675), (25, 768509), (35, 548935), (101, 190225), (175, 109787), (505, 38045), (707, 27175), (1087, 17675), (2525, 7609), (3535, 5435)]