20692539

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{293}}^1$

素因数の和:384

約数の個数: 48

約数和(自身を含む): 36691200

約数和(自身を除く): 15998661

約数列:

[1, 3, 7, 9, 19, 21, 57, 59, 63, 133, 171, 177, 293, 399, 413, 531, 879, 1121, 1197, 1239, 2051, 2637, 3363, 3717, 5567, 6153, 7847, 10089, 16701, 17287, 18459, 23541, 38969, 50103, 51861, 70623, 116907, 121009, 155583, 328453, 350721, 363027, 985359, 1089081, 2299171, 2956077, 6897513, 20692539]

約数ペア:

[(1, 20692539), (3, 6897513), (7, 2956077), (9, 2299171), (19, 1089081), (21, 985359), (57, 363027), (59, 350721), (63, 328453), (133, 155583), (171, 121009), (177, 116907), (293, 70623), (399, 51861), (413, 50103), (531, 38969), (879, 23541), (1121, 18459), (1197, 17287), (1239, 16701), (2051, 10089), (2637, 7847), (3363, 6153), (3717, 5567)]