28729503

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{521}}^1\times {\mathrm{557}}^1$

素因数の和:1095

約数の個数: 24

約数和(自身を含む): 45439056

約数和(自身を除く): 16709553

約数列:

[1, 3, 9, 11, 33, 99, 521, 557, 1563, 1671, 4689, 5013, 5731, 6127, 17193, 18381, 51579, 55143, 290197, 870591, 2611773, 3192167, 9576501, 28729503]

約数ペア:

[(1, 28729503), (3, 9576501), (9, 3192167), (11, 2611773), (33, 870591), (99, 290197), (521, 55143), (557, 51579), (1563, 18381), (1671, 17193), (4689, 6127), (5013, 5731)]