16540251

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1409}}^1$

素因数の和:1475

約数の個数: 32

約数和(自身を含む): 27793920

約数和(自身を除く): 11253669

約数列:

[1, 3, 7, 13, 21, 39, 43, 91, 129, 273, 301, 559, 903, 1409, 1677, 3913, 4227, 9863, 11739, 18317, 29589, 54951, 60587, 128219, 181761, 384657, 424109, 787631, 1272327, 2362893, 5513417, 16540251]

約数ペア:

[(1, 16540251), (3, 5513417), (7, 2362893), (13, 1272327), (21, 787631), (39, 424109), (43, 384657), (91, 181761), (129, 128219), (273, 60587), (301, 54951), (559, 29589), (903, 18317), (1409, 11739), (1677, 9863), (3913, 4227)]