2649381

素因数分解:

$3^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{269}}^1$

素因数の和:353

約数の個数: 24

約数和(自身を含む): 4186080

約数和(自身を除く): 1536699

約数列:

[1, 3, 7, 21, 49, 67, 147, 201, 269, 469, 807, 1407, 1883, 3283, 5649, 9849, 13181, 18023, 39543, 54069, 126161, 378483, 883127, 2649381]

約数ペア:

[(1, 2649381), (3, 883127), (7, 378483), (21, 126161), (49, 54069), (67, 39543), (147, 18023), (201, 13181), (269, 9849), (469, 5649), (807, 3283), (1407, 1883)]