21777205

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1\times {\mathrm{463}}^1$

素因数の和:900

約数の個数: 16

約数和(自身を含む): 27394560

約数和(自身を除く): 5617355

約数列:

[1, 5, 23, 115, 409, 463, 2045, 2315, 9407, 10649, 47035, 53245, 189367, 946835, 4355441, 21777205]

約数ペア:

[(1, 21777205), (5, 4355441), (23, 946835), (115, 189367), (409, 53245), (463, 47035), (2045, 10649), (2315, 9407)]