16978329

素因数分解:

$3^4\times {\mathrm{179}}^1\times {\mathrm{1171}}^1$

素因数の和:1362

約数の個数: 20

約数和(自身を含む): 25526160

約数和(自身を除く): 8547831

約数列:

[1, 3, 9, 27, 81, 179, 537, 1171, 1611, 3513, 4833, 10539, 14499, 31617, 94851, 209609, 628827, 1886481, 5659443, 16978329]

約数ペア:

[(1, 16978329), (3, 5659443), (9, 1886481), (27, 628827), (81, 209609), (179, 94851), (537, 31617), (1171, 14499), (1611, 10539), (3513, 4833)]