16881475

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{409}}^1$

素因数の和:559

約数の個数: 24

約数和(自身を含む): 22776320

約数和(自身を除く): 5894845

約数列:

[1, 5, 13, 25, 65, 127, 325, 409, 635, 1651, 2045, 3175, 5317, 8255, 10225, 26585, 41275, 51943, 132925, 259715, 675259, 1298575, 3376295, 16881475]

約数ペア:

[(1, 16881475), (5, 3376295), (13, 1298575), (25, 675259), (65, 259715), (127, 132925), (325, 51943), (409, 41275), (635, 26585), (1651, 10225), (2045, 8255), (3175, 5317)]