20551971

素因数分解:

$3^1\times {\mathrm{11}}^3\times {\mathrm{5147}}^1$

素因数の和:5183

約数の個数: 16

約数和(自身を含む): 30146688

約数和(自身を除く): 9594717

約数列:

[1, 3, 11, 33, 121, 363, 1331, 3993, 5147, 15441, 56617, 169851, 622787, 1868361, 6850657, 20551971]

約数ペア:

[(1, 20551971), (3, 6850657), (11, 1868361), (33, 622787), (121, 169851), (363, 56617), (1331, 15441), (3993, 5147)]