20529068

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{353}}^1$

素因数の和:462

約数の個数: 48

約数和(自身を含む): 43137024

約数和(自身を除く): 22607956

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 67, 124, 134, 217, 268, 353, 434, 469, 706, 868, 938, 1412, 1876, 2077, 2471, 4154, 4942, 8308, 9884, 10943, 14539, 21886, 23651, 29078, 43772, 47302, 58156, 76601, 94604, 153202, 165557, 306404, 331114, 662228, 733181, 1466362, 2932724, 5132267, 10264534, 20529068]

約数ペア:

[(1, 20529068), (2, 10264534), (4, 5132267), (7, 2932724), (14, 1466362), (28, 733181), (31, 662228), (62, 331114), (67, 306404), (124, 165557), (134, 153202), (217, 94604), (268, 76601), (353, 58156), (434, 47302), (469, 43772), (706, 29078), (868, 23651), (938, 21886), (1412, 14539), (1876, 10943), (2077, 9884), (2471, 8308), (4154, 4942)]