81637276

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{47797}}^1$

素因数の和:47869

約数の個数: 24

約数和(自身を含む): 165954656

約数和(自身を除く): 84317380

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 244, 427, 854, 1708, 47797, 95594, 191188, 334579, 669158, 1338316, 2915617, 5831234, 11662468, 20409319, 40818638, 81637276]

約数ペア:

[(1, 81637276), (2, 40818638), (4, 20409319), (7, 11662468), (14, 5831234), (28, 2915617), (61, 1338316), (122, 669158), (244, 334579), (427, 191188), (854, 95594), (1708, 47797)]