81220818

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{15227}}^1$

素因数の和:15366

約数の個数: 32

約数和(自身を含む): 187121664

約数和(自身を除く): 105900846

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 127, 254, 381, 762, 889, 1778, 2667, 5334, 15227, 30454, 45681, 91362, 106589, 213178, 319767, 639534, 1933829, 3867658, 5801487, 11602974, 13536803, 27073606, 40610409, 81220818]

約数ペア:

[(1, 81220818), (2, 40610409), (3, 27073606), (6, 13536803), (7, 11602974), (14, 5801487), (21, 3867658), (42, 1933829), (127, 639534), (254, 319767), (381, 213178), (762, 106589), (889, 91362), (1778, 45681), (2667, 30454), (5334, 15227)]