28705299

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{80407}}^1$

素因数の和:80434

約数の個数: 16

約数和(自身を含む): 46315008

約数和(自身を除く): 17609709

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 80407, 241221, 562849, 1366919, 1688547, 4100757, 9568433, 28705299]

約数ペア:

[(1, 28705299), (3, 9568433), (7, 4100757), (17, 1688547), (21, 1366919), (51, 562849), (119, 241221), (357, 80407)]