20286378

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{233}}^1\times {\mathrm{691}}^1$

素因数の和:939

約数の個数: 48

約数和(自身を含む): 50521536

約数和(自身を除く): 30235158

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 233, 466, 691, 699, 1382, 1398, 1631, 2073, 2097, 3262, 4146, 4194, 4837, 4893, 6219, 9674, 9786, 12438, 14511, 14679, 29022, 29358, 43533, 87066, 161003, 322006, 483009, 966018, 1127021, 1449027, 2254042, 2898054, 3381063, 6762126, 10143189, 20286378]

約数ペア:

[(1, 20286378), (2, 10143189), (3, 6762126), (6, 3381063), (7, 2898054), (9, 2254042), (14, 1449027), (18, 1127021), (21, 966018), (42, 483009), (63, 322006), (126, 161003), (233, 87066), (466, 43533), (691, 29358), (699, 29022), (1382, 14679), (1398, 14511), (1631, 12438), (2073, 9786), (2097, 9674), (3262, 6219), (4146, 4893), (4194, 4837)]