28720433

素因数分解:

$7^1\times {\mathrm{59}}^1\times {\mathrm{197}}^1\times {\mathrm{353}}^1$

素因数の和:616

約数の個数: 16

約数和(自身を含む): 33644160

約数和(自身を除く): 4923727

約数列:

[1, 7, 59, 197, 353, 413, 1379, 2471, 11623, 20827, 69541, 81361, 145789, 486787, 4102919, 28720433]

約数ペア:

[(1, 28720433), (7, 4102919), (59, 486787), (197, 145789), (353, 81361), (413, 69541), (1379, 20827), (2471, 11623)]