20715926

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{1747}}^1$

素因数の和:1785

約数の個数: 36

約数和(自身を含む): 39754764

約数和(自身を除く): 19038838

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 121, 154, 242, 539, 847, 1078, 1694, 1747, 3494, 5929, 11858, 12229, 19217, 24458, 38434, 85603, 134519, 171206, 211387, 269038, 422774, 941633, 1479709, 1883266, 2959418, 10357963, 20715926]

約数ペア:

[(1, 20715926), (2, 10357963), (7, 2959418), (11, 1883266), (14, 1479709), (22, 941633), (49, 422774), (77, 269038), (98, 211387), (121, 171206), (154, 134519), (242, 85603), (539, 38434), (847, 24458), (1078, 19217), (1694, 12229), (1747, 11858), (3494, 5929)]