858690639

素因数分解:

$3^4\times {\mathrm{419}}^1\times {\mathrm{25301}}^1$

素因数の和:25732

約数の個数: 20

約数和(自身を含む): 1285847640

約数和(自身を除く): 427157001

約数列:

[1, 3, 9, 27, 81, 419, 1257, 3771, 11313, 25301, 33939, 75903, 227709, 683127, 2049381, 10601119, 31803357, 95410071, 286230213, 858690639]

約数ペア:

[(1, 858690639), (3, 286230213), (9, 95410071), (27, 31803357), (81, 10601119), (419, 2049381), (1257, 683127), (3771, 227709), (11313, 75903), (25301, 33939)]