20689542

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{16189}}^1$

素因数の和:16268

約数の個数: 24

約数和(自身を含む): 45461520

約数和(自身を除く): 24771978

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 16189, 32378, 48567, 97134, 145701, 291402, 1149419, 2298838, 3448257, 6896514, 10344771, 20689542]

約数ペア:

[(1, 20689542), (2, 10344771), (3, 6896514), (6, 3448257), (9, 2298838), (18, 1149419), (71, 291402), (142, 145701), (213, 97134), (426, 48567), (639, 32378), (1278, 16189)]