20165681767

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{607}}^1\times {\mathrm{643}}^1$

素因数の和:1340

約数の個数: 48

約数和(自身を含む): 25829902336

約数和(自身を除く): 5664220569

約数列:

[1, 7, 11, 61, 77, 121, 427, 607, 643, 671, 847, 4249, 4501, 4697, 6677, 7073, 7381, 37027, 39223, 46739, 49511, 51667, 73447, 77803, 259189, 274561, 390301, 407297, 431453, 514129, 544621, 2732107, 2851079, 3020171, 4293311, 4480267, 4745983, 23808361, 30053177, 31361869, 33221881, 47226421, 166658527, 261891971, 330584947, 1833243797, 2880811681, 20165681767]

約数ペア:

[(1, 20165681767), (7, 2880811681), (11, 1833243797), (61, 330584947), (77, 261891971), (121, 166658527), (427, 47226421), (607, 33221881), (643, 31361869), (671, 30053177), (847, 23808361), (4249, 4745983), (4501, 4480267), (4697, 4293311), (6677, 3020171), (7073, 2851079), (7381, 2732107), (37027, 544621), (39223, 514129), (46739, 431453), (49511, 407297), (51667, 390301), (73447, 274561), (77803, 259189)]