217552456

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{647}}^1\times {\mathrm{3821}}^1$

素因数の和:4485

約数の個数: 32

約数和(自身を含む): 445798080

約数和(自身を除く): 228245624

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 647, 1294, 2588, 3821, 5176, 7117, 7642, 14234, 15284, 28468, 30568, 42031, 56936, 84062, 168124, 336248, 2472187, 4944374, 9888748, 19777496, 27194057, 54388114, 108776228, 217552456]

約数ペア:

[(1, 217552456), (2, 108776228), (4, 54388114), (8, 27194057), (11, 19777496), (22, 9888748), (44, 4944374), (88, 2472187), (647, 336248), (1294, 168124), (2588, 84062), (3821, 56936), (5176, 42031), (7117, 30568), (7642, 28468), (14234, 15284)]