81663841

素因数分解:

$7^3\times {\mathrm{41}}^1\times {\mathrm{5807}}^1$

素因数の和:5869

約数の個数: 16

約数和(自身を含む): 97574400

約数和(自身を除く): 15910559

約数列:

[1, 7, 41, 49, 287, 343, 2009, 5807, 14063, 40649, 238087, 284543, 1666609, 1991801, 11666263, 81663841]

約数ペア:

[(1, 81663841), (7, 11666263), (41, 1991801), (49, 1666609), (287, 284543), (343, 238087), (2009, 40649), (5807, 14063)]