21531177

素因数分解:

$3^4\times {\mathrm{227}}^1\times {\mathrm{1171}}^1$

素因数の和:1410

約数の個数: 20

約数和(自身を含む): 32333136

約数和(自身を除く): 10801959

約数列:

[1, 3, 9, 27, 81, 227, 681, 1171, 2043, 3513, 6129, 10539, 18387, 31617, 94851, 265817, 797451, 2392353, 7177059, 21531177]

約数ペア:

[(1, 21531177), (3, 7177059), (9, 2392353), (27, 797451), (81, 265817), (227, 94851), (681, 31617), (1171, 18387), (2043, 10539), (3513, 6129)]