19564902

素因数分解:

$2^1\times 3^9\times 7^1\times {\mathrm{71}}^1$

素因数の和:107

約数の個数: 80

約数和(自身を含む): 51017472

約数和(自身を除く): 31452570

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 71, 81, 126, 142, 162, 189, 213, 243, 378, 426, 486, 497, 567, 639, 729, 994, 1134, 1278, 1458, 1491, 1701, 1917, 2187, 2982, 3402, 3834, 4374, 4473, 5103, 5751, 6561, 8946, 10206, 11502, 13122, 13419, 15309, 17253, 19683, 26838, 30618, 34506, 39366, 40257, 45927, 51759, 80514, 91854, 103518, 120771, 137781, 155277, 241542, 275562, 310554, 362313, 465831, 724626, 931662, 1086939, 1397493, 2173878, 2794986, 3260817, 6521634, 9782451, 19564902]

約数ペア:

[(1, 19564902), (2, 9782451), (3, 6521634), (6, 3260817), (7, 2794986), (9, 2173878), (14, 1397493), (18, 1086939), (21, 931662), (27, 724626), (42, 465831), (54, 362313), (63, 310554), (71, 275562), (81, 241542), (126, 155277), (142, 137781), (162, 120771), (189, 103518), (213, 91854), (243, 80514), (378, 51759), (426, 45927), (486, 40257), (497, 39366), (567, 34506), (639, 30618), (729, 26838), (994, 19683), (1134, 17253), (1278, 15309), (1458, 13419), (1491, 13122), (1701, 11502), (1917, 10206), (2187, 8946), (2982, 6561), (3402, 5751), (3834, 5103), (4374, 4473)]