81840537

素因数分解:

$3^4\times {\mathrm{227}}^1\times {\mathrm{4451}}^1$

素因数の和:4690

約数の個数: 20

約数和(自身を含む): 122821776

約数和(自身を除く): 40981239

約数列:

[1, 3, 9, 27, 81, 227, 681, 2043, 4451, 6129, 13353, 18387, 40059, 120177, 360531, 1010377, 3031131, 9093393, 27280179, 81840537]

約数ペア:

[(1, 81840537), (3, 27280179), (9, 9093393), (27, 3031131), (81, 1010377), (227, 360531), (681, 120177), (2043, 40059), (4451, 18387), (6129, 13353)]