21617217

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{6143}}^1$

素因数の和:6189

約数の個数: 24

約数和(自身を含む): 34504704

約数和(自身を除く): 12887487

約数列:

[1, 3, 9, 17, 23, 51, 69, 153, 207, 391, 1173, 3519, 6143, 18429, 55287, 104431, 141289, 313293, 423867, 939879, 1271601, 2401913, 7205739, 21617217]

約数ペア:

[(1, 21617217), (3, 7205739), (9, 2401913), (17, 1271601), (23, 939879), (51, 423867), (69, 313293), (153, 141289), (207, 104431), (391, 55287), (1173, 18429), (3519, 6143)]