20512474461

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1689521}}^1$

素因数の和:1689617

約数の個数: 24

約数和(自身を含む): 31627851840

約数和(自身を除く): 11115377379

約数列:

[1, 3, 9, 19, 57, 71, 171, 213, 639, 1349, 4047, 12141, 1689521, 5068563, 15205689, 32100899, 96302697, 119955991, 288908091, 359867973, 1079603919, 2279163829, 6837491487, 20512474461]

約数ペア:

[(1, 20512474461), (3, 6837491487), (9, 2279163829), (19, 1079603919), (57, 359867973), (71, 288908091), (171, 119955991), (213, 96302697), (639, 32100899), (1349, 15205689), (4047, 5068563), (12141, 1689521)]