21576009

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4649}}^1$

素因数の和:4689

約数の個数: 32

約数和(自身を含む): 37497600

約数和(自身を除く): 15921591

約数列:

[1, 3, 7, 13, 17, 21, 39, 51, 91, 119, 221, 273, 357, 663, 1547, 4641, 4649, 13947, 32543, 60437, 79033, 97629, 181311, 237099, 423059, 553231, 1027429, 1269177, 1659693, 3082287, 7192003, 21576009]

約数ペア:

[(1, 21576009), (3, 7192003), (7, 3082287), (13, 1659693), (17, 1269177), (21, 1027429), (39, 553231), (51, 423059), (91, 237099), (119, 181311), (221, 97629), (273, 79033), (357, 60437), (663, 32543), (1547, 13947), (4641, 4649)]