20013561

素因数分解:

$3^4\times {\mathrm{211}}^1\times {\mathrm{1171}}^1$

素因数の和:1394

約数の個数: 20

約数和(自身を含む): 30064144

約数和(自身を除く): 10050583

約数列:

[1, 3, 9, 27, 81, 211, 633, 1171, 1899, 3513, 5697, 10539, 17091, 31617, 94851, 247081, 741243, 2223729, 6671187, 20013561]

約数ペア:

[(1, 20013561), (3, 6671187), (9, 2223729), (27, 741243), (81, 247081), (211, 94851), (633, 31617), (1171, 17091), (1899, 10539), (3513, 5697)]