21861081

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{461}}^1\times {\mathrm{479}}^1$

素因数の和:957

約数の個数: 24

約数和(自身を含む): 34594560

約数和(自身を除く): 12733479

約数列:

[1, 3, 9, 11, 33, 99, 461, 479, 1383, 1437, 4149, 4311, 5071, 5269, 15213, 15807, 45639, 47421, 220819, 662457, 1987371, 2429009, 7287027, 21861081]

約数ペア:

[(1, 21861081), (3, 7287027), (9, 2429009), (11, 1987371), (33, 662457), (99, 220819), (461, 47421), (479, 45639), (1383, 15807), (1437, 15213), (4149, 5269), (4311, 5071)]