18638277

素因数分解:

$3^1\times 7^3\times {\mathrm{59}}^1\times {\mathrm{307}}^1$

素因数の和:390

約数の個数: 32

約数和(自身を含む): 29568000

約数和(自身を除く): 10929723

約数列:

[1, 3, 7, 21, 49, 59, 147, 177, 307, 343, 413, 921, 1029, 1239, 2149, 2891, 6447, 8673, 15043, 18113, 20237, 45129, 54339, 60711, 105301, 126791, 315903, 380373, 887537, 2662611, 6212759, 18638277]

約数ペア:

[(1, 18638277), (3, 6212759), (7, 2662611), (21, 887537), (49, 380373), (59, 315903), (147, 126791), (177, 105301), (307, 60711), (343, 54339), (413, 45129), (921, 20237), (1029, 18113), (1239, 15043), (2149, 8673), (2891, 6447)]