681331887

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{137393}}^1$

素因数の和:137447

約数の個数: 24

約数和(自身を含む): 1071673200

約数和(自身を除く): 390341313

約数列:

[1, 3, 9, 19, 29, 57, 87, 171, 261, 551, 1653, 4959, 137393, 412179, 1236537, 2610467, 3984397, 7831401, 11953191, 23494203, 35859573, 75703543, 227110629, 681331887]

約数ペア:

[(1, 681331887), (3, 227110629), (9, 75703543), (19, 35859573), (29, 23494203), (57, 11953191), (87, 7831401), (171, 3984397), (261, 2610467), (551, 1236537), (1653, 412179), (4959, 137393)]