19937283

素因数分解:

$3^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1\times {\mathrm{523}}^1$

素因数の和:754

約数の個数: 16

約数和(自身を含む): 27113856

約数和(自身を除く): 7176573

約数列:

[1, 3, 97, 131, 291, 393, 523, 1569, 12707, 38121, 50731, 68513, 152193, 205539, 6645761, 19937283]

約数ペア:

[(1, 19937283), (3, 6645761), (97, 205539), (131, 152193), (291, 68513), (393, 50731), (523, 38121), (1569, 12707)]