21000298563

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{32864317}}^1$

素因数の和:32864394

約数の個数: 12

約数和(自身を含む): 30761001648

約数和(自身を除く): 9760703085

約数列:

[1, 3, 9, 71, 213, 639, 32864317, 98592951, 295778853, 2333366507, 7000099521, 21000298563]

約数ペア:

[(1, 21000298563), (3, 7000099521), (9, 2333366507), (71, 295778853), (213, 98592951), (639, 32864317)]