81355527

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{659}}^1$

素因数の和:748

約数の個数: 48

約数和(自身を含む): 135907200

約数和(自身を除く): 54551673

約数列:

[1, 3, 9, 11, 29, 33, 43, 87, 99, 129, 261, 319, 387, 473, 659, 957, 1247, 1419, 1977, 2871, 3741, 4257, 5931, 7249, 11223, 13717, 19111, 21747, 28337, 41151, 57333, 65241, 85011, 123453, 171999, 210221, 255033, 311707, 630663, 821773, 935121, 1891989, 2465319, 2805363, 7395957, 9039503, 27118509, 81355527]

約数ペア:

[(1, 81355527), (3, 27118509), (9, 9039503), (11, 7395957), (29, 2805363), (33, 2465319), (43, 1891989), (87, 935121), (99, 821773), (129, 630663), (261, 311707), (319, 255033), (387, 210221), (473, 171999), (659, 123453), (957, 85011), (1247, 65241), (1419, 57333), (1977, 41151), (2871, 28337), (3741, 21747), (4257, 19111), (5931, 13717), (7249, 11223)]