17969121

素因数分解:

$3^6\times {\mathrm{157}}^2$

素因数の和:332

約数の個数: 21

約数和(自身を含む): 27114051

約数和(自身を除く): 9144930

約数列:

[1, 3, 9, 27, 81, 157, 243, 471, 729, 1413, 4239, 12717, 24649, 38151, 73947, 114453, 221841, 665523, 1996569, 5989707, 17969121]

約数ペア:

[(1, 17969121), (3, 5989707), (9, 1996569), (27, 665523), (81, 221841), (157, 114453), (243, 73947), (471, 38151), (729, 24649), (1413, 12717)]