13191903

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:205

約数の個数: 40

約数和(自身を含む): 21059808

約数和(自身を除く): 7867905

約数列:

[1, 3, 9, 23, 27, 69, 73, 81, 97, 207, 219, 291, 621, 657, 873, 1679, 1863, 1971, 2231, 2619, 5037, 5913, 6693, 7081, 7857, 15111, 20079, 21243, 45333, 60237, 63729, 135999, 162863, 180711, 191187, 488589, 573561, 1465767, 4397301, 13191903]

約数ペア:

[(1, 13191903), (3, 4397301), (9, 1465767), (23, 573561), (27, 488589), (69, 191187), (73, 180711), (81, 162863), (97, 135999), (207, 63729), (219, 60237), (291, 45333), (621, 21243), (657, 20079), (873, 15111), (1679, 7857), (1863, 7081), (1971, 6693), (2231, 5913), (2619, 5037)]