20671986

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{919}}^1$

素因数の和:1110

約数の個数: 32

約数和(自身を含む): 43453440

約数和(自身を除く): 22781454

約数列:

[1, 2, 3, 6, 23, 46, 69, 138, 163, 326, 489, 919, 978, 1838, 2757, 3749, 5514, 7498, 11247, 21137, 22494, 42274, 63411, 126822, 149797, 299594, 449391, 898782, 3445331, 6890662, 10335993, 20671986]

約数ペア:

[(1, 20671986), (2, 10335993), (3, 6890662), (6, 3445331), (23, 898782), (46, 449391), (69, 299594), (138, 149797), (163, 126822), (326, 63411), (489, 42274), (919, 22494), (978, 21137), (1838, 11247), (2757, 7498), (3749, 5514)]