25983279

素因数分解:

$3^2\times 7^3\times {\mathrm{19}}^1\times {\mathrm{443}}^1$

素因数の和:489

約数の個数: 48

約数和(自身を含む): 46176000

約数和(自身を除く): 20192721

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 343, 399, 441, 443, 931, 1029, 1197, 1329, 2793, 3087, 3101, 3987, 6517, 8379, 8417, 9303, 19551, 21707, 25251, 27909, 58653, 58919, 65121, 75753, 151949, 176757, 195363, 412433, 455847, 530271, 1237299, 1367541, 2887031, 3711897, 8661093, 25983279]

約数ペア:

[(1, 25983279), (3, 8661093), (7, 3711897), (9, 2887031), (19, 1367541), (21, 1237299), (49, 530271), (57, 455847), (63, 412433), (133, 195363), (147, 176757), (171, 151949), (343, 75753), (399, 65121), (441, 58919), (443, 58653), (931, 27909), (1029, 25251), (1197, 21707), (1329, 19551), (2793, 9303), (3087, 8417), (3101, 8379), (3987, 6517)]