19904691

素因数分解:

$3^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1\times {\mathrm{937}}^1$

素因数の和:1110

約数の個数: 16

約数和(自身を含む): 27209504

約数和(自身を除く): 7304813

約数列:

[1, 3, 73, 97, 219, 291, 937, 2811, 7081, 21243, 68401, 90889, 205203, 272667, 6634897, 19904691]

約数ペア:

[(1, 19904691), (3, 6634897), (73, 272667), (97, 205203), (219, 90889), (291, 68401), (937, 21243), (2811, 7081)]