7921881

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{523}}^1$

素因数の和:563

約数の個数: 40

約数和(自身を含む): 13695264

約数和(自身を除く): 5773383

約数列:

[1, 3, 9, 11, 17, 27, 33, 51, 81, 99, 153, 187, 297, 459, 523, 561, 891, 1377, 1569, 1683, 4707, 5049, 5753, 8891, 14121, 15147, 17259, 26673, 42363, 51777, 80019, 97801, 155331, 240057, 293403, 465993, 720171, 880209, 2640627, 7921881]

約数ペア:

[(1, 7921881), (3, 2640627), (9, 880209), (11, 720171), (17, 465993), (27, 293403), (33, 240057), (51, 155331), (81, 97801), (99, 80019), (153, 51777), (187, 42363), (297, 26673), (459, 17259), (523, 15147), (561, 14121), (891, 8891), (1377, 5753), (1569, 5049), (1683, 4707)]