19995048

素因数分解:

$2^3\times 3^2\times {\mathrm{331}}^1\times {\mathrm{839}}^1$

素因数の和:1182

約数の個数: 48

約数和(自身を含む): 54381600

約数和(自身を除く): 34386552

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 331, 662, 839, 993, 1324, 1678, 1986, 2517, 2648, 2979, 3356, 3972, 5034, 5958, 6712, 7551, 7944, 10068, 11916, 15102, 20136, 23832, 30204, 60408, 277709, 555418, 833127, 1110836, 1666254, 2221672, 2499381, 3332508, 4998762, 6665016, 9997524, 19995048]

約数ペア:

[(1, 19995048), (2, 9997524), (3, 6665016), (4, 4998762), (6, 3332508), (8, 2499381), (9, 2221672), (12, 1666254), (18, 1110836), (24, 833127), (36, 555418), (72, 277709), (331, 60408), (662, 30204), (839, 23832), (993, 20136), (1324, 15102), (1678, 11916), (1986, 10068), (2517, 7944), (2648, 7551), (2979, 6712), (3356, 5958), (3972, 5034)]