20647510173

素因数分解:

$3^4\times {\mathrm{433}}^1\times {\mathrm{571}}^1\times {\mathrm{1031}}^1$

素因数の和:2047

約数の個数: 40

約数和(自身を含む): 30999224256

約数和(自身を除く): 10351714083

約数列:

[1, 3, 9, 27, 81, 433, 571, 1031, 1299, 1713, 3093, 3897, 5139, 9279, 11691, 15417, 27837, 35073, 46251, 83511, 247243, 446423, 588701, 741729, 1339269, 1766103, 2225187, 4017807, 5298309, 6675561, 12053421, 15894927, 20026683, 36160263, 47684781, 254907533, 764722599, 2294167797, 6882503391, 20647510173]

約数ペア:

[(1, 20647510173), (3, 6882503391), (9, 2294167797), (27, 764722599), (81, 254907533), (433, 47684781), (571, 36160263), (1031, 20026683), (1299, 15894927), (1713, 12053421), (3093, 6675561), (3897, 5298309), (5139, 4017807), (9279, 2225187), (11691, 1766103), (15417, 1339269), (27837, 741729), (35073, 588701), (46251, 446423), (83511, 247243)]