20999687181

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2657}}^1\times {\mathrm{6473}}^1$

素因数の和:9181

約数の個数: 32

約数和(自身を含む): 31387195008

約数和(自身を除く): 10387507827

約数列:

[1, 3, 11, 33, 37, 111, 407, 1221, 2657, 6473, 7971, 19419, 29227, 71203, 87681, 98309, 213609, 239501, 294927, 718503, 1081399, 2634511, 3244197, 7903533, 17198761, 51596283, 189186371, 567559113, 636354157, 1909062471, 6999895727, 20999687181]

約数ペア:

[(1, 20999687181), (3, 6999895727), (11, 1909062471), (33, 636354157), (37, 567559113), (111, 189186371), (407, 51596283), (1221, 17198761), (2657, 7903533), (6473, 3244197), (7971, 2634511), (19419, 1081399), (29227, 718503), (71203, 294927), (87681, 239501), (98309, 213609)]