20400333

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{1709}}^1$

素因数の和:1908

約数の個数: 16

約数和(自身を含む): 28563840

約数和(自身を除く): 8163507

約数列:

[1, 3, 23, 69, 173, 519, 1709, 3979, 5127, 11937, 39307, 117921, 295657, 886971, 6800111, 20400333]

約数ペア:

[(1, 20400333), (3, 6800111), (23, 886971), (69, 295657), (173, 117921), (519, 39307), (1709, 11937), (3979, 5127)]