20199874317

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{317}}^1\times {\mathrm{593}}^1$

素因数の和:987

約数の個数: 96

約数和(自身を含む): 34109361792

約数和(自身を除く): 13909487475

約数列:

[1, 3, 7, 17, 21, 43, 49, 51, 119, 129, 147, 301, 317, 357, 593, 731, 833, 903, 951, 1779, 2107, 2193, 2219, 2499, 4151, 5117, 5389, 6321, 6657, 10081, 12453, 13631, 15351, 15533, 16167, 25499, 29057, 30243, 35819, 37723, 40893, 46599, 70567, 76497, 87171, 95417, 107457, 113169, 178493, 187981, 211701, 231727, 264061, 286251, 433483, 493969, 535479, 563943, 667919, 695181, 792183, 1249451, 1300449, 1315867, 1481907, 1622089, 2003757, 3034381, 3195677, 3748353, 3947601, 4866267, 8083183, 9103143, 9211069, 9587031, 11354623, 21240667, 22369739, 24249549, 27633207, 34063869, 56582281, 63722001, 67109217, 137414111, 156588173, 169746843, 396075967, 412242333, 469764519, 961898777, 1188227901, 2885696331, 6733291439, 20199874317]

約数ペア:

[(1, 20199874317), (3, 6733291439), (7, 2885696331), (17, 1188227901), (21, 961898777), (43, 469764519), (49, 412242333), (51, 396075967), (119, 169746843), (129, 156588173), (147, 137414111), (301, 67109217), (317, 63722001), (357, 56582281), (593, 34063869), (731, 27633207), (833, 24249549), (903, 22369739), (951, 21240667), (1779, 11354623), (2107, 9587031), (2193, 9211069), (2219, 9103143), (2499, 8083183), (4151, 4866267), (5117, 3947601), (5389, 3748353), (6321, 3195677), (6657, 3034381), (10081, 2003757), (12453, 1622089), (13631, 1481907), (15351, 1315867), (15533, 1300449), (16167, 1249451), (25499, 792183), (29057, 695181), (30243, 667919), (35819, 563943), (37723, 535479), (40893, 493969), (46599, 433483), (70567, 286251), (76497, 264061), (87171, 231727), (95417, 211701), (107457, 187981), (113169, 178493)]