71381817

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{67789}}^1$

素因数の和:67814

約数の個数: 20

約数和(自身を含む): 114836260

約数和(自身を除く): 43454443

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 67789, 203367, 610101, 881257, 1830303, 2643771, 5490909, 7931313, 23793939, 71381817]

約数ペア:

[(1, 71381817), (3, 23793939), (9, 7931313), (13, 5490909), (27, 2643771), (39, 1830303), (81, 881257), (117, 610101), (351, 203367), (1053, 67789)]