21009621039

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1229}}^1\times {\mathrm{17863}}^1$

素因数の和:19135

約数の個数: 32

約数和(自身を含む): 31640716800

約数和(自身を除く): 10631095761

約数列:

[1, 3, 11, 29, 33, 87, 319, 957, 1229, 3687, 13519, 17863, 35641, 40557, 53589, 106923, 196493, 392051, 518027, 589479, 1176153, 1554081, 5698297, 17094891, 21953627, 65860881, 241489897, 636655183, 724469691, 1909965549, 7003207013, 21009621039]

約数ペア:

[(1, 21009621039), (3, 7003207013), (11, 1909965549), (29, 724469691), (33, 636655183), (87, 241489897), (319, 65860881), (957, 21953627), (1229, 17094891), (3687, 5698297), (13519, 1554081), (17863, 1176153), (35641, 589479), (40557, 518027), (53589, 392051), (106923, 196493)]