21347656

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{367}}^1\times {\mathrm{661}}^1$

素因数の和:1045

約数の個数: 32

約数和(自身を含む): 43850880

約数和(自身を除く): 22503224

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 367, 661, 734, 1322, 1468, 2644, 2936, 4037, 5288, 7271, 8074, 14542, 16148, 29084, 32296, 58168, 242587, 485174, 970348, 1940696, 2668457, 5336914, 10673828, 21347656]

約数ペア:

[(1, 21347656), (2, 10673828), (4, 5336914), (8, 2668457), (11, 1940696), (22, 970348), (44, 485174), (88, 242587), (367, 58168), (661, 32296), (734, 29084), (1322, 16148), (1468, 14542), (2644, 8074), (2936, 7271), (4037, 5288)]