20975943

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{21647}}^1$

素因数の和:21686

約数の個数: 16

約数和(自身を含む): 31173120

約数和(自身を除く): 10197177

約数列:

[1, 3, 17, 19, 51, 57, 323, 969, 21647, 64941, 367999, 411293, 1103997, 1233879, 6991981, 20975943]

約数ペア:

[(1, 20975943), (3, 6991981), (17, 1233879), (19, 1103997), (51, 411293), (57, 367999), (323, 64941), (969, 21647)]