19721016

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{13043}}^1$

素因数の和:13065

約数の個数: 64

約数和(自身を含む): 62611200

約数和(自身を除く): 42890184

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 84, 108, 126, 168, 189, 216, 252, 378, 504, 756, 1512, 13043, 26086, 39129, 52172, 78258, 91301, 104344, 117387, 156516, 182602, 234774, 273903, 313032, 352161, 365204, 469548, 547806, 704322, 730408, 821709, 939096, 1095612, 1408644, 1643418, 2191224, 2465127, 2817288, 3286836, 4930254, 6573672, 9860508, 19721016]

約数ペア:

[(1, 19721016), (2, 9860508), (3, 6573672), (4, 4930254), (6, 3286836), (7, 2817288), (8, 2465127), (9, 2191224), (12, 1643418), (14, 1408644), (18, 1095612), (21, 939096), (24, 821709), (27, 730408), (28, 704322), (36, 547806), (42, 469548), (54, 365204), (56, 352161), (63, 313032), (72, 273903), (84, 234774), (108, 182602), (126, 156516), (168, 117387), (189, 104344), (216, 91301), (252, 78258), (378, 52172), (504, 39129), (756, 26086), (1512, 13043)]