19852497

素因数分解:

$3^2\times 7^3\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:195

約数の個数: 48

約数和(自身を含む): 34320000

約数和(自身を除く): 14467503

約数列:

[1, 3, 7, 9, 21, 49, 59, 63, 109, 147, 177, 327, 343, 413, 441, 531, 763, 981, 1029, 1239, 2289, 2891, 3087, 3717, 5341, 6431, 6867, 8673, 16023, 19293, 20237, 26019, 37387, 45017, 48069, 57879, 60711, 112161, 135051, 182133, 315119, 336483, 405153, 945357, 2205833, 2836071, 6617499, 19852497]

約数ペア:

[(1, 19852497), (3, 6617499), (7, 2836071), (9, 2205833), (21, 945357), (49, 405153), (59, 336483), (63, 315119), (109, 182133), (147, 135051), (177, 112161), (327, 60711), (343, 57879), (413, 48069), (441, 45017), (531, 37387), (763, 26019), (981, 20237), (1029, 19293), (1239, 16023), (2289, 8673), (2891, 6867), (3087, 6431), (3717, 5341)]