28873089

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{26959}}^1$

素因数の和:26989

約数の個数: 24

約数和(自身を含む): 50469120

約数和(自身を除く): 21596031

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 26959, 80877, 188713, 242631, 458303, 566139, 1374909, 1698417, 3208121, 4124727, 9624363, 28873089]

約数ペア:

[(1, 28873089), (3, 9624363), (7, 4124727), (9, 3208121), (17, 1698417), (21, 1374909), (51, 566139), (63, 458303), (119, 242631), (153, 188713), (357, 80877), (1071, 26959)]