20983908

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2239}}^1$

素因数の和:2328

約数の個数: 48

約数和(自身を含む): 54190080

約数和(自身を除く): 33206172

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 71, 132, 142, 213, 284, 426, 781, 852, 1562, 2239, 2343, 3124, 4478, 4686, 6717, 8956, 9372, 13434, 24629, 26868, 49258, 73887, 98516, 147774, 158969, 295548, 317938, 476907, 635876, 953814, 1748659, 1907628, 3497318, 5245977, 6994636, 10491954, 20983908]

約数ペア:

[(1, 20983908), (2, 10491954), (3, 6994636), (4, 5245977), (6, 3497318), (11, 1907628), (12, 1748659), (22, 953814), (33, 635876), (44, 476907), (66, 317938), (71, 295548), (132, 158969), (142, 147774), (213, 98516), (284, 73887), (426, 49258), (781, 26868), (852, 24629), (1562, 13434), (2239, 9372), (2343, 8956), (3124, 6717), (4478, 4686)]