864999

素因数分解:

$3^4\times {\mathrm{59}}^1\times {\mathrm{181}}^1$

素因数の和:252

約数の個数: 20

約数和(自身を含む): 1321320

約数和(自身を除く): 456321

約数列:

[1, 3, 9, 27, 59, 81, 177, 181, 531, 543, 1593, 1629, 4779, 4887, 10679, 14661, 32037, 96111, 288333, 864999]

約数ペア:

[(1, 864999), (3, 288333), (9, 96111), (27, 32037), (59, 14661), (81, 10679), (177, 4887), (181, 4779), (531, 1629), (543, 1593)]