28690921

素因数分解:

$7^3\times {\mathrm{233}}^1\times {\mathrm{359}}^1$

素因数の和:613

約数の個数: 16

約数和(自身を含む): 33696000

約数和(自身を除く): 5005079

約数列:

[1, 7, 49, 233, 343, 359, 1631, 2513, 11417, 17591, 79919, 83647, 123137, 585529, 4098703, 28690921]

約数ペア:

[(1, 28690921), (7, 4098703), (49, 585529), (233, 123137), (343, 83647), (359, 79919), (1631, 17591), (2513, 11417)]