20788216

素因数分解:

$2^3\times {\mathrm{257}}^1\times {\mathrm{10111}}^1$

素因数の和:10374

約数の個数: 16

約数和(自身を含む): 39133440

約数和(自身を除く): 18345224

約数列:

[1, 2, 4, 8, 257, 514, 1028, 2056, 10111, 20222, 40444, 80888, 2598527, 5197054, 10394108, 20788216]

約数ペア:

[(1, 20788216), (2, 10394108), (4, 5197054), (8, 2598527), (257, 80888), (514, 40444), (1028, 20222), (2056, 10111)]