1649673879

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{12491}}^1$

素因数の和:12851

約数の個数: 32

約数和(自身を含む): 2654300160

約数和(自身を除く): 1004626281

約数列:

[1, 3, 7, 19, 21, 57, 133, 331, 399, 993, 2317, 6289, 6951, 12491, 18867, 37473, 44023, 87437, 132069, 237329, 262311, 711987, 1661303, 4134521, 4983909, 12403563, 28941647, 78555899, 86824941, 235667697, 549891293, 1649673879]

約数ペア:

[(1, 1649673879), (3, 549891293), (7, 235667697), (19, 86824941), (21, 78555899), (57, 28941647), (133, 12403563), (331, 4983909), (399, 4134521), (993, 1661303), (2317, 711987), (6289, 262311), (6951, 237329), (12491, 132069), (18867, 87437), (37473, 44023)]