21000340839

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{1381}}^1\times {\mathrm{298169}}^1$

素因数の和:299570

約数の個数: 16

約数和(自身を含む): 29669107680

約数和(自身を除く): 8668766841

約数列:

[1, 3, 17, 51, 1381, 4143, 23477, 70431, 298169, 894507, 5068873, 15206619, 411771389, 1235314167, 7000113613, 21000340839]

約数ペア:

[(1, 21000340839), (3, 7000113613), (17, 1235314167), (51, 411771389), (1381, 15206619), (4143, 5068873), (23477, 894507), (70431, 298169)]