19660857

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{1613}}^1$

素因数の和:1872

約数の個数: 16

約数和(自身を含む): 27889920

約数和(自身を除く): 8229063

約数列:

[1, 3, 17, 51, 239, 717, 1613, 4063, 4839, 12189, 27421, 82263, 385507, 1156521, 6553619, 19660857]

約数ペア:

[(1, 19660857), (3, 6553619), (17, 1156521), (51, 385507), (239, 82263), (717, 27421), (1613, 12189), (4063, 4839)]