21475311

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{443}}^1$

素因数の和:583

約数の個数: 32

約数和(自身を含む): 34013952

約数和(自身を除く): 12538641

約数列:

[1, 3, 11, 13, 33, 39, 113, 143, 339, 429, 443, 1243, 1329, 1469, 3729, 4407, 4873, 5759, 14619, 16159, 17277, 48477, 50059, 63349, 150177, 190047, 550649, 650767, 1651947, 1952301, 7158437, 21475311]

約数ペア:

[(1, 21475311), (3, 7158437), (11, 1952301), (13, 1651947), (33, 650767), (39, 550649), (113, 190047), (143, 150177), (339, 63349), (429, 50059), (443, 48477), (1243, 17277), (1329, 16159), (1469, 14619), (3729, 5759), (4407, 4873)]