19709703

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{241}}^1$

素因数の和:496

約数の個数: 32

約数和(自身を含む): 31711680

約数和(自身を除く): 12001977

約数列:

[1, 3, 9, 13, 27, 39, 117, 233, 241, 351, 699, 723, 2097, 2169, 3029, 3133, 6291, 6507, 9087, 9399, 27261, 28197, 56153, 81783, 84591, 168459, 505377, 729989, 1516131, 2189967, 6569901, 19709703]

約数ペア:

[(1, 19709703), (3, 6569901), (9, 2189967), (13, 1516131), (27, 729989), (39, 505377), (117, 168459), (233, 84591), (241, 81783), (351, 56153), (699, 28197), (723, 27261), (2097, 9399), (2169, 9087), (3029, 6507), (3133, 6291)]