20173192641

素因数分解:

$3^4\times 7^2\times {\mathrm{257}}^1\times {\mathrm{19777}}^1$

素因数の和:20060

約数の個数: 60

約数和(自身を含む): 35193487428

約数和(自身を除く): 15020294787

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 257, 441, 567, 771, 1323, 1799, 2313, 3969, 5397, 6939, 12593, 16191, 19777, 20817, 37779, 48573, 59331, 113337, 138439, 145719, 177993, 340011, 415317, 533979, 969073, 1020033, 1245951, 1601937, 2907219, 3737853, 5082689, 8721657, 11213559, 15248067, 26164971, 35578823, 45744201, 78494913, 106736469, 137232603, 249051761, 320209407, 411697809, 747155283, 960628221, 2241465849, 2881884663, 6724397547, 20173192641]

約数ペア:

[(1, 20173192641), (3, 6724397547), (7, 2881884663), (9, 2241465849), (21, 960628221), (27, 747155283), (49, 411697809), (63, 320209407), (81, 249051761), (147, 137232603), (189, 106736469), (257, 78494913), (441, 45744201), (567, 35578823), (771, 26164971), (1323, 15248067), (1799, 11213559), (2313, 8721657), (3969, 5082689), (5397, 3737853), (6939, 2907219), (12593, 1601937), (16191, 1245951), (19777, 1020033), (20817, 969073), (37779, 533979), (48573, 415317), (59331, 340011), (113337, 177993), (138439, 145719)]