21140613

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{1789}}^1$

素因数の和:1909

約数の個数: 24

約数和(自身を含む): 33229560

約数和(自身を除く): 12088947

約数列:

[1, 3, 9, 13, 39, 101, 117, 303, 909, 1313, 1789, 3939, 5367, 11817, 16101, 23257, 69771, 180689, 209313, 542067, 1626201, 2348957, 7046871, 21140613]

約数ペア:

[(1, 21140613), (3, 7046871), (9, 2348957), (13, 1626201), (39, 542067), (101, 209313), (117, 180689), (303, 69771), (909, 23257), (1313, 16101), (1789, 11817), (3939, 5367)]