81535909

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{157}}^1\times {\mathrm{439}}^1$

素因数の和:629

約数の個数: 24

約数和(自身を含む): 101777280

約数和(自身を除く): 20241371

約数列:

[1, 7, 13, 91, 157, 169, 439, 1099, 1183, 2041, 3073, 5707, 14287, 26533, 39949, 68923, 74191, 185731, 482461, 519337, 895999, 6271993, 11647987, 81535909]

約数ペア:

[(1, 81535909), (7, 11647987), (13, 6271993), (91, 895999), (157, 519337), (169, 482461), (439, 185731), (1099, 74191), (1183, 68923), (2041, 39949), (3073, 26533), (5707, 14287)]