20748046

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{359}}^1$

素因数の和:480

約数の個数: 32

約数和(自身を含む): 35458560

約数和(自身を除く): 14710514

約数列:

[1, 2, 11, 22, 37, 71, 74, 142, 359, 407, 718, 781, 814, 1562, 2627, 3949, 5254, 7898, 13283, 25489, 26566, 28897, 50978, 57794, 146113, 280379, 292226, 560758, 943093, 1886186, 10374023, 20748046]

約数ペア:

[(1, 20748046), (2, 10374023), (11, 1886186), (22, 943093), (37, 560758), (71, 292226), (74, 280379), (142, 146113), (359, 57794), (407, 50978), (718, 28897), (781, 26566), (814, 25489), (1562, 13283), (2627, 7898), (3949, 5254)]