1205721

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{641}}^1$

素因数の和:677

約数の個数: 24

約数和(自身を含む): 2003040

約数和(自身を除く): 797319

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 171, 209, 627, 641, 1881, 1923, 5769, 7051, 12179, 21153, 36537, 63459, 109611, 133969, 401907, 1205721]

約数ペア:

[(1, 1205721), (3, 401907), (9, 133969), (11, 109611), (19, 63459), (33, 36537), (57, 21153), (99, 12179), (171, 7051), (209, 5769), (627, 1923), (641, 1881)]