81397887

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{227}}^1$

素因数の和:415

約数の個数: 32

約数和(自身を含む): 118195200

約数和(自身を除く): 36797313

約数列:

[1, 3, 17, 51, 79, 89, 227, 237, 267, 681, 1343, 1513, 3859, 4029, 4539, 7031, 11577, 17933, 20203, 21093, 53799, 60609, 119527, 304861, 343451, 358581, 914583, 1030353, 1596037, 4788111, 27132629, 81397887]

約数ペア:

[(1, 81397887), (3, 27132629), (17, 4788111), (51, 1596037), (79, 1030353), (89, 914583), (227, 358581), (237, 343451), (267, 304861), (681, 119527), (1343, 60609), (1513, 53799), (3859, 21093), (4029, 20203), (4539, 17933), (7031, 11577)]