81748719

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{16249}}^1$

素因数の和:16311

約数の個数: 24

約数和(自身を含む): 130130000

約数和(自身を除く): 48381281

約数列:

[1, 3, 9, 13, 39, 43, 117, 129, 387, 559, 1677, 5031, 16249, 48747, 146241, 211237, 633711, 698707, 1901133, 2096121, 6288363, 9083191, 27249573, 81748719]

約数ペア:

[(1, 81748719), (3, 27249573), (9, 9083191), (13, 6288363), (39, 2096121), (43, 1901133), (117, 698707), (129, 633711), (387, 211237), (559, 146241), (1677, 48747), (5031, 16249)]