20801727

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1721}}^1$

素因数の和:1823

約数の個数: 24

約数和(自身を含む): 32235840

約数和(自身を除く): 11434113

約数列:

[1, 3, 9, 17, 51, 79, 153, 237, 711, 1343, 1721, 4029, 5163, 12087, 15489, 29257, 87771, 135959, 263313, 407877, 1223631, 2311303, 6933909, 20801727]

約数ペア:

[(1, 20801727), (3, 6933909), (9, 2311303), (17, 1223631), (51, 407877), (79, 263313), (153, 135959), (237, 87771), (711, 29257), (1343, 15489), (1721, 12087), (4029, 5163)]