20648859

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1259}}^1$

素因数の和:1351

約数の個数: 32

約数和(自身を含む): 34836480

約数和(自身を除く): 14187621

約数列:

[1, 3, 7, 11, 21, 33, 71, 77, 213, 231, 497, 781, 1259, 1491, 2343, 3777, 5467, 8813, 13849, 16401, 26439, 41547, 89389, 96943, 268167, 290829, 625723, 983279, 1877169, 2949837, 6882953, 20648859]

約数ペア:

[(1, 20648859), (3, 6882953), (7, 2949837), (11, 1877169), (21, 983279), (33, 625723), (71, 290829), (77, 268167), (213, 96943), (231, 89389), (497, 41547), (781, 26439), (1259, 16401), (1491, 13849), (2343, 8813), (3777, 5467)]