20181998613

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{499}}^1\times {\mathrm{587}}^1$

素因数の和:1306

約数の個数: 64

約数和(自身を含む): 32852736000

約数和(自身を除く): 12670737387

約数列:

[1, 3, 7, 17, 21, 51, 119, 193, 357, 499, 579, 587, 1351, 1497, 1761, 3281, 3493, 4053, 4109, 8483, 9843, 9979, 10479, 12327, 22967, 25449, 29937, 59381, 68901, 69853, 96307, 113291, 178143, 209559, 288921, 292913, 339873, 674149, 793037, 878739, 1637219, 1925947, 2022447, 2050391, 2379111, 4911657, 4979521, 5777841, 6151173, 11460533, 13481629, 14938563, 34381599, 34856647, 40444887, 56532209, 104569941, 169596627, 395725463, 961047553, 1187176389, 2883142659, 6727332871, 20181998613]

約数ペア:

[(1, 20181998613), (3, 6727332871), (7, 2883142659), (17, 1187176389), (21, 961047553), (51, 395725463), (119, 169596627), (193, 104569941), (357, 56532209), (499, 40444887), (579, 34856647), (587, 34381599), (1351, 14938563), (1497, 13481629), (1761, 11460533), (3281, 6151173), (3493, 5777841), (4053, 4979521), (4109, 4911657), (8483, 2379111), (9843, 2050391), (9979, 2022447), (10479, 1925947), (12327, 1637219), (22967, 878739), (25449, 793037), (29937, 674149), (59381, 339873), (68901, 292913), (69853, 288921), (96307, 209559), (113291, 178143)]