19740705

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{28001}}^1$

素因数の和:28056

約数の個数: 16

約数和(自身を含む): 32258304

約数和(自身を除く): 12517599

約数列:

[1, 3, 5, 15, 47, 141, 235, 705, 28001, 84003, 140005, 420015, 1316047, 3948141, 6580235, 19740705]

約数ペア:

[(1, 19740705), (3, 6580235), (5, 3948141), (15, 1316047), (47, 420015), (141, 140005), (235, 84003), (705, 28001)]