18932211

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{4973}}^1$

素因数の和:5032

約数の個数: 20

約数和(自身を含む): 28888992

約数和(自身を除く): 9956781

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 4973, 14919, 44757, 134271, 233731, 402813, 701193, 2103579, 6310737, 18932211]

約数ペア:

[(1, 18932211), (3, 6310737), (9, 2103579), (27, 701193), (47, 402813), (81, 233731), (141, 134271), (423, 44757), (1269, 14919), (3807, 4973)]