18839961

素因数分解:

$3^2\times 7^3\times {\mathrm{17}}^1\times {\mathrm{359}}^1$

素因数の和:403

約数の個数: 48

約数和(自身を含む): 33696000

約数和(自身を除く): 14856039

約数列:

[1, 3, 7, 9, 17, 21, 49, 51, 63, 119, 147, 153, 343, 357, 359, 441, 833, 1029, 1071, 1077, 2499, 2513, 3087, 3231, 5831, 6103, 7497, 7539, 17493, 17591, 18309, 22617, 42721, 52479, 52773, 54927, 123137, 128163, 158319, 299047, 369411, 384489, 897141, 1108233, 2093329, 2691423, 6279987, 18839961]

約数ペア:

[(1, 18839961), (3, 6279987), (7, 2691423), (9, 2093329), (17, 1108233), (21, 897141), (49, 384489), (51, 369411), (63, 299047), (119, 158319), (147, 128163), (153, 123137), (343, 54927), (357, 52773), (359, 52479), (441, 42721), (833, 22617), (1029, 18309), (1071, 17591), (1077, 17493), (2499, 7539), (2513, 7497), (3087, 6103), (3231, 5831)]