21041802

素因数分解:

$2^1\times 3^3\times {\mathrm{389663}}^1$

素因数の和:389674

約数の個数: 16

約数和(自身を含む): 46759680

約数和(自身を除く): 25717878

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 389663, 779326, 1168989, 2337978, 3506967, 7013934, 10520901, 21041802]

約数ペア:

[(1, 21041802), (2, 10520901), (3, 7013934), (6, 3506967), (9, 2337978), (18, 1168989), (27, 779326), (54, 389663)]