20217565731

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{19543}}^1$

素因数の和:19656

約数の個数: 64

約数和(自身を含む): 32421150720

約数和(自身を除く): 12203584989

約数列:

[1, 3, 11, 23, 29, 33, 47, 69, 87, 141, 253, 319, 517, 667, 759, 957, 1081, 1363, 1551, 2001, 3243, 4089, 7337, 11891, 14993, 19543, 22011, 31349, 35673, 44979, 58629, 94047, 214973, 344839, 449489, 566747, 644919, 918521, 1034517, 1348467, 1700241, 2755563, 4944379, 6234217, 10103731, 13035181, 14833137, 18702651, 21125983, 26637109, 30311193, 39105543, 63377949, 79911327, 143386991, 232385813, 293008199, 430160973, 612653507, 697157439, 879024597, 1837960521, 6739188577, 20217565731]

約数ペア:

[(1, 20217565731), (3, 6739188577), (11, 1837960521), (23, 879024597), (29, 697157439), (33, 612653507), (47, 430160973), (69, 293008199), (87, 232385813), (141, 143386991), (253, 79911327), (319, 63377949), (517, 39105543), (667, 30311193), (759, 26637109), (957, 21125983), (1081, 18702651), (1363, 14833137), (1551, 13035181), (2001, 10103731), (3243, 6234217), (4089, 4944379), (7337, 2755563), (11891, 1700241), (14993, 1348467), (19543, 1034517), (22011, 918521), (31349, 644919), (35673, 566747), (44979, 449489), (58629, 344839), (94047, 214973)]