21796767

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{227}}^2$

素因数の和:507

約数の個数: 18

約数和(自身を含む): 32296368

約数和(自身を除く): 10499601

約数列:

[1, 3, 9, 47, 141, 227, 423, 681, 2043, 10669, 32007, 51529, 96021, 154587, 463761, 2421863, 7265589, 21796767]

約数ペア:

[(1, 21796767), (3, 7265589), (9, 2421863), (47, 463761), (141, 154587), (227, 96021), (423, 51529), (681, 32007), (2043, 10669)]