20829368

素因数分解:

$2^3\times 7^1\times {\mathrm{431}}^1\times {\mathrm{863}}^1$

素因数の和:1307

約数の個数: 32

約数和(自身を含む): 44789760

約数和(自身を除く): 23960392

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 431, 862, 863, 1724, 1726, 3017, 3448, 3452, 6034, 6041, 6904, 12068, 12082, 24136, 24164, 48328, 371953, 743906, 1487812, 2603671, 2975624, 5207342, 10414684, 20829368]

約数ペア:

[(1, 20829368), (2, 10414684), (4, 5207342), (7, 2975624), (8, 2603671), (14, 1487812), (28, 743906), (56, 371953), (431, 48328), (862, 24164), (863, 24136), (1724, 12082), (1726, 12068), (3017, 6904), (3448, 6041), (3452, 6034)]