28012719

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{78467}}^1$

素因数の和:78494

約数の個数: 16

約数和(自身を含む): 45197568

約数和(自身を除く): 17184849

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 78467, 235401, 549269, 1333939, 1647807, 4001817, 9337573, 28012719]

約数ペア:

[(1, 28012719), (3, 9337573), (7, 4001817), (17, 1647807), (21, 1333939), (51, 549269), (119, 235401), (357, 78467)]