81267381

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1087}}^1$

素因数の和:1183

約数の個数: 40

約数和(自身を含む): 132701184

約数和(自身を除く): 51433803

約数列:

[1, 3, 9, 13, 27, 39, 71, 81, 117, 213, 351, 639, 923, 1053, 1087, 1917, 2769, 3261, 5751, 8307, 9783, 14131, 24921, 29349, 42393, 74763, 77177, 88047, 127179, 231531, 381537, 694593, 1003301, 1144611, 2083779, 3009903, 6251337, 9029709, 27089127, 81267381]

約数ペア:

[(1, 81267381), (3, 27089127), (9, 9029709), (13, 6251337), (27, 3009903), (39, 2083779), (71, 1144611), (81, 1003301), (117, 694593), (213, 381537), (351, 231531), (639, 127179), (923, 88047), (1053, 77177), (1087, 74763), (1917, 42393), (2769, 29349), (3261, 24921), (5751, 14131), (8307, 9783)]