21002703

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{3853}}^1$

素因数の和:3958

約数の個数: 16

約数和(自身を含む): 29598720

約数和(自身を除く): 8596017

約数列:

[1, 3, 23, 69, 79, 237, 1817, 3853, 5451, 11559, 88619, 265857, 304387, 913161, 7000901, 21002703]

約数ペア:

[(1, 21002703), (3, 7000901), (23, 913161), (69, 304387), (79, 265857), (237, 88619), (1817, 11559), (3853, 5451)]