81978786

素因数分解:

$2^1\times 3^2\times {\mathrm{431}}^1\times {\mathrm{10567}}^1$

素因数の和:11006

約数の個数: 24

約数和(自身を含む): 178049664

約数和(自身を除く): 96070878

約数列:

[1, 2, 3, 6, 9, 18, 431, 862, 1293, 2586, 3879, 7758, 10567, 21134, 31701, 63402, 95103, 190206, 4554377, 9108754, 13663131, 27326262, 40989393, 81978786]

約数ペア:

[(1, 81978786), (2, 40989393), (3, 27326262), (6, 13663131), (9, 9108754), (18, 4554377), (431, 190206), (862, 95103), (1293, 63402), (2586, 31701), (3879, 21134), (7758, 10567)]