30720447

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{487}}^1$

素因数の和:699

約数の個数: 24

約数和(自身を含む): 45778304

約数和(自身を除く): 15057857

約数列:

[1, 3, 9, 43, 129, 163, 387, 487, 489, 1461, 1467, 4383, 7009, 20941, 21027, 62823, 63081, 79381, 188469, 238143, 714429, 3413383, 10240149, 30720447]

約数ペア:

[(1, 30720447), (3, 10240149), (9, 3413383), (43, 714429), (129, 238143), (163, 188469), (387, 79381), (487, 63081), (489, 62823), (1461, 21027), (1467, 20941), (4383, 7009)]