20742351

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{24091}}^1$

素因数の和:24142

約数の個数: 16

約数和(自身を含む): 32379648

約数和(自身を除く): 11637297

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 24091, 72273, 168637, 505911, 987731, 2963193, 6914117, 20742351]

約数ペア:

[(1, 20742351), (3, 6914117), (7, 2963193), (21, 987731), (41, 505911), (123, 168637), (287, 72273), (861, 24091)]