20407845

素因数分解:

$3^1\times 5^1\times {\mathrm{223}}^1\times {\mathrm{6101}}^1$

素因数の和:6332

約数の個数: 16

約数和(自身を含む): 32804352

約数和(自身を除く): 12396507

約数列:

[1, 3, 5, 15, 223, 669, 1115, 3345, 6101, 18303, 30505, 91515, 1360523, 4081569, 6802615, 20407845]

約数ペア:

[(1, 20407845), (3, 6802615), (5, 4081569), (15, 1360523), (223, 91515), (669, 30505), (1115, 18303), (3345, 6101)]