18768321

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4861}}^1$

素因数の和:4894

約数の個数: 32

約数和(自身を含む): 32672640

約数和(自身を除く): 13904319

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 99, 117, 143, 297, 351, 429, 1287, 3861, 4861, 14583, 43749, 53471, 63193, 131247, 160413, 189579, 481239, 568737, 695123, 1443717, 1706211, 2085369, 6256107, 18768321]

約数ペア:

[(1, 18768321), (3, 6256107), (9, 2085369), (11, 1706211), (13, 1443717), (27, 695123), (33, 568737), (39, 481239), (99, 189579), (117, 160413), (143, 131247), (297, 63193), (351, 53471), (429, 43749), (1287, 14583), (3861, 4861)]