890757

素因数分解:

$3^4\times 7^1\times {\mathrm{1571}}^1$

素因数の和:1590

約数の個数: 20

約数和(自身を含む): 1521696

約数和(自身を除く): 630939

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 1571, 4713, 10997, 14139, 32991, 42417, 98973, 127251, 296919, 890757]

約数ペア:

[(1, 890757), (3, 296919), (7, 127251), (9, 98973), (21, 42417), (27, 32991), (63, 14139), (81, 10997), (189, 4713), (567, 1571)]