21399534

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{839}}^1$

素因数の和:969

約数の個数: 48

約数和(自身を含む): 50450400

約数和(自身を除く): 29050866

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 109, 117, 218, 234, 327, 654, 839, 981, 1417, 1678, 1962, 2517, 2834, 4251, 5034, 7551, 8502, 10907, 12753, 15102, 21814, 25506, 32721, 65442, 91451, 98163, 182902, 196326, 274353, 548706, 823059, 1188863, 1646118, 2377726, 3566589, 7133178, 10699767, 21399534]

約数ペア:

[(1, 21399534), (2, 10699767), (3, 7133178), (6, 3566589), (9, 2377726), (13, 1646118), (18, 1188863), (26, 823059), (39, 548706), (78, 274353), (109, 196326), (117, 182902), (218, 98163), (234, 91451), (327, 65442), (654, 32721), (839, 25506), (981, 21814), (1417, 15102), (1678, 12753), (1962, 10907), (2517, 8502), (2834, 7551), (4251, 5034)]