20756351

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{397}}^1$

素因数の和:519

約数の個数: 24

約数和(自身を含む): 26678736

約数和(自身を除く): 5922385

約数列:

[1, 7, 11, 49, 77, 97, 397, 539, 679, 1067, 2779, 4367, 4753, 7469, 19453, 30569, 38509, 52283, 213983, 269563, 423599, 1886941, 2965193, 20756351]

約数ペア:

[(1, 20756351), (7, 2965193), (11, 1886941), (49, 423599), (77, 269563), (97, 213983), (397, 52283), (539, 38509), (679, 30569), (1067, 19453), (2779, 7469), (4367, 4753)]