291217221

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{2081}}^1$

素因数の和:2234

約数の個数: 32

約数和(自身を含む): 443715840

約数和(自身を除く): 152498619

約数列:

[1, 3, 9, 27, 71, 73, 213, 219, 639, 657, 1917, 1971, 2081, 5183, 6243, 15549, 18729, 46647, 56187, 139941, 147751, 151913, 443253, 455739, 1329759, 1367217, 3989277, 4101651, 10785823, 32357469, 97072407, 291217221]

約数ペア:

[(1, 291217221), (3, 97072407), (9, 32357469), (27, 10785823), (71, 4101651), (73, 3989277), (213, 1367217), (219, 1329759), (639, 455739), (657, 443253), (1917, 151913), (1971, 147751), (2081, 139941), (5183, 56187), (6243, 46647), (15549, 18729)]