21545703

素因数分解:

$3^3\times {\mathrm{109}}^1\times {\mathrm{7321}}^1$

素因数の和:7439

約数の個数: 16

約数和(自身を含む): 32216800

約数和(自身を除く): 10671097

約数列:

[1, 3, 9, 27, 109, 327, 981, 2943, 7321, 21963, 65889, 197667, 797989, 2393967, 7181901, 21545703]

約数ペア:

[(1, 21545703), (3, 7181901), (9, 2393967), (27, 797989), (109, 197667), (327, 65889), (981, 21963), (2943, 7321)]