211321773

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{25439}}^1$

素因数の和:25529

約数の個数: 24

約数和(自身を含む): 333365760

約数和(自身を除く): 122043987

約数列:

[1, 3, 9, 13, 39, 71, 117, 213, 639, 923, 2769, 8307, 25439, 76317, 228951, 330707, 992121, 1806169, 2976363, 5418507, 16255521, 23480197, 70440591, 211321773]

約数ペア:

[(1, 211321773), (3, 70440591), (9, 23480197), (13, 16255521), (39, 5418507), (71, 2976363), (117, 1806169), (213, 992121), (639, 330707), (923, 228951), (2769, 76317), (8307, 25439)]