20809446

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{293}}^1$

素因数の和:413

約数の個数: 64

約数和(自身を含む): 50803200

約数和(自身を除く): 29993754

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 89, 114, 133, 178, 266, 267, 293, 399, 534, 586, 623, 798, 879, 1246, 1691, 1758, 1869, 2051, 3382, 3738, 4102, 5073, 5567, 6153, 10146, 11134, 11837, 12306, 16701, 23674, 26077, 33402, 35511, 38969, 52154, 71022, 77938, 78231, 116907, 156462, 182539, 233814, 365078, 495463, 547617, 990926, 1095234, 1486389, 2972778, 3468241, 6936482, 10404723, 20809446]

約数ペア:

[(1, 20809446), (2, 10404723), (3, 6936482), (6, 3468241), (7, 2972778), (14, 1486389), (19, 1095234), (21, 990926), (38, 547617), (42, 495463), (57, 365078), (89, 233814), (114, 182539), (133, 156462), (178, 116907), (266, 78231), (267, 77938), (293, 71022), (399, 52154), (534, 38969), (586, 35511), (623, 33402), (798, 26077), (879, 23674), (1246, 16701), (1691, 12306), (1758, 11837), (1869, 11134), (2051, 10146), (3382, 6153), (3738, 5567), (4102, 5073)]