21615417

素因数分解:

$3^4\times {\mathrm{59}}^1\times {\mathrm{4523}}^1$

素因数の和:4594

約数の個数: 20

約数和(自身を含む): 32844240

約数和(自身を除く): 11228823

約数列:

[1, 3, 9, 27, 59, 81, 177, 531, 1593, 4523, 4779, 13569, 40707, 122121, 266857, 366363, 800571, 2401713, 7205139, 21615417]

約数ペア:

[(1, 21615417), (3, 7205139), (9, 2401713), (27, 800571), (59, 366363), (81, 266857), (177, 122121), (531, 40707), (1593, 13569), (4523, 4779)]