21989913

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{5897}}^1$

素因数の和:6024

約数の個数: 16

約数和(自身を含む): 32273856

約数和(自身を除く): 10283943

約数列:

[1, 3, 11, 33, 113, 339, 1243, 3729, 5897, 17691, 64867, 194601, 666361, 1999083, 7329971, 21989913]

約数ペア:

[(1, 21989913), (3, 7329971), (11, 1999083), (33, 666361), (113, 194601), (339, 64867), (1243, 17691), (3729, 5897)]