66646719

素因数分解:

$3^4\times {\mathrm{151}}^1\times {\mathrm{5449}}^1$

素因数の和:5612

約数の個数: 20

約数和(自身を含む): 100236400

約数和(自身を除く): 33589681

約数列:

[1, 3, 9, 27, 81, 151, 453, 1359, 4077, 5449, 12231, 16347, 49041, 147123, 441369, 822799, 2468397, 7405191, 22215573, 66646719]

約数ペア:

[(1, 66646719), (3, 22215573), (9, 7405191), (27, 2468397), (81, 822799), (151, 441369), (453, 147123), (1359, 49041), (4077, 16347), (5449, 12231)]