19403055

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1987}}^1$

素因数の和:2036

約数の個数: 48

約数和(自身を含む): 39696384

約数和(自身を除く): 20293329

約数列:

[1, 3, 5, 7, 9, 15, 21, 31, 35, 45, 63, 93, 105, 155, 217, 279, 315, 465, 651, 1085, 1395, 1953, 1987, 3255, 5961, 9765, 9935, 13909, 17883, 29805, 41727, 61597, 69545, 89415, 125181, 184791, 208635, 307985, 431179, 554373, 625905, 923955, 1293537, 2155895, 2771865, 3880611, 6467685, 19403055]

約数ペア:

[(1, 19403055), (3, 6467685), (5, 3880611), (7, 2771865), (9, 2155895), (15, 1293537), (21, 923955), (31, 625905), (35, 554373), (45, 431179), (63, 307985), (93, 208635), (105, 184791), (155, 125181), (217, 89415), (279, 69545), (315, 61597), (465, 41727), (651, 29805), (1085, 17883), (1395, 13909), (1953, 9935), (1987, 9765), (3255, 5961)]