81918893

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{5717}}^1$

素因数の和:5836

約数の個数: 16

約数和(自身を含む): 98807040

約数和(自身を除く): 16888147

約数列:

[1, 7, 23, 89, 161, 623, 2047, 5717, 14329, 40019, 131491, 508813, 920437, 3561691, 11702699, 81918893]

約数ペア:

[(1, 81918893), (7, 11702699), (23, 3561691), (89, 920437), (161, 508813), (623, 131491), (2047, 40019), (5717, 14329)]