81217642

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{28181}}^1$

素因数の和:28325

約数の個数: 16

約数和(自身を含む): 133920864

約数和(自身を除く): 52703222

約数列:

[1, 2, 11, 22, 131, 262, 1441, 2882, 28181, 56362, 309991, 619982, 3691711, 7383422, 40608821, 81217642]

約数ペア:

[(1, 81217642), (2, 40608821), (11, 7383422), (22, 3691711), (131, 619982), (262, 309991), (1441, 56362), (2882, 28181)]