19659981

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{4691}}^1$

素因数の和:4832

約数の個数: 16

約数和(自身を含む): 28827648

約数和(自身を除く): 9167667

約数列:

[1, 3, 11, 33, 127, 381, 1397, 4191, 4691, 14073, 51601, 154803, 595757, 1787271, 6553327, 19659981]

約数ペア:

[(1, 19659981), (3, 6553327), (11, 1787271), (33, 595757), (127, 154803), (381, 51601), (1397, 14073), (4191, 4691)]