20996979

素因数分解:

$3^1\times {\mathrm{59}}^1\times {\mathrm{313}}^1\times {\mathrm{379}}^1$

素因数の和:754

約数の個数: 16

約数和(自身を含む): 28636800

約数和(自身を除く): 7639821

約数列:

[1, 3, 59, 177, 313, 379, 939, 1137, 18467, 22361, 55401, 67083, 118627, 355881, 6998993, 20996979]

約数ペア:

[(1, 20996979), (3, 6998993), (59, 355881), (177, 118627), (313, 67083), (379, 55401), (939, 22361), (1137, 18467)]