21149977

素因数分解:

${\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1$

素因数の和:288

約数の個数: 16

約数和(自身を含む): 22522752

約数和(自身を除く): 1372775

約数列:

[1, 37, 71, 83, 97, 2627, 3071, 3589, 5893, 6887, 8051, 218041, 254819, 297887, 571621, 21149977]

約数ペア:

[(1, 21149977), (37, 571621), (71, 297887), (83, 254819), (97, 218041), (2627, 8051), (3071, 6887), (3589, 5893)]