21800727

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{479}}^1$

素因数の和:887

約数の個数: 24

約数和(自身を含む): 34070400

約数和(自身を除く): 12269673

約数列:

[1, 3, 9, 13, 39, 117, 389, 479, 1167, 1437, 3501, 4311, 5057, 6227, 15171, 18681, 45513, 56043, 186331, 558993, 1676979, 2422303, 7266909, 21800727]

約数ペア:

[(1, 21800727), (3, 7266909), (9, 2422303), (13, 1676979), (39, 558993), (117, 186331), (389, 56043), (479, 45513), (1167, 18681), (1437, 15171), (3501, 6227), (4311, 5057)]