81511318

素因数分解:

$2^1\times 7^1\times {\mathrm{631}}^1\times {\mathrm{9227}}^1$

素因数の和:9867

約数の個数: 16

約数和(自身を含む): 139970304

約数和(自身を除く): 58458986

約数列:

[1, 2, 7, 14, 631, 1262, 4417, 8834, 9227, 18454, 64589, 129178, 5822237, 11644474, 40755659, 81511318]

約数ペア:

[(1, 81511318), (2, 40755659), (7, 11644474), (14, 5822237), (631, 129178), (1262, 64589), (4417, 18454), (8834, 9227)]