816207921

素因数分解:

$3^4\times {\mathrm{523}}^1\times {\mathrm{19267}}^1$

素因数の和:19802

約数の個数: 20

約数和(自身を含む): 1221668272

約数和(自身を除く): 405460351

約数列:

[1, 3, 9, 27, 81, 523, 1569, 4707, 14121, 19267, 42363, 57801, 173403, 520209, 1560627, 10076641, 30229923, 90689769, 272069307, 816207921]

約数ペア:

[(1, 816207921), (3, 272069307), (9, 90689769), (27, 30229923), (81, 10076641), (523, 1560627), (1569, 520209), (4707, 173403), (14121, 57801), (19267, 42363)]