81611313

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{17909}}^1$

素因数の和:17957

約数の個数: 24

約数和(自身を含む): 130671360

約数和(自身を除く): 49060047

約数列:

[1, 3, 7, 21, 31, 49, 93, 147, 217, 651, 1519, 4557, 17909, 53727, 125363, 376089, 555179, 877541, 1665537, 2632623, 3886253, 11658759, 27203771, 81611313]

約数ペア:

[(1, 81611313), (3, 27203771), (7, 11658759), (21, 3886253), (31, 2632623), (49, 1665537), (93, 877541), (147, 555179), (217, 376089), (651, 125363), (1519, 53727), (4557, 17909)]