19723986

素因数分解:

$2^1\times 3^4\times {\mathrm{109}}^1\times {\mathrm{1117}}^1$

素因数の和:1240

約数の個数: 40

約数和(自身を含む): 44641740

約数和(自身を除く): 24917754

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 109, 162, 218, 327, 654, 981, 1117, 1962, 2234, 2943, 3351, 5886, 6702, 8829, 10053, 17658, 20106, 30159, 60318, 90477, 121753, 180954, 243506, 365259, 730518, 1095777, 2191554, 3287331, 6574662, 9861993, 19723986]

約数ペア:

[(1, 19723986), (2, 9861993), (3, 6574662), (6, 3287331), (9, 2191554), (18, 1095777), (27, 730518), (54, 365259), (81, 243506), (109, 180954), (162, 121753), (218, 90477), (327, 60318), (654, 30159), (981, 20106), (1117, 17658), (1962, 10053), (2234, 8829), (2943, 6702), (3351, 5886)]