18493370

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{61}}^2\times {\mathrm{71}}^1$

素因数の和:207

約数の個数: 48

約数和(自身を含む): 39222144

約数和(自身を除く): 20728774

約数列:

[1, 2, 5, 7, 10, 14, 35, 61, 70, 71, 122, 142, 305, 355, 427, 497, 610, 710, 854, 994, 2135, 2485, 3721, 4270, 4331, 4970, 7442, 8662, 18605, 21655, 26047, 30317, 37210, 43310, 52094, 60634, 130235, 151585, 260470, 264191, 303170, 528382, 1320955, 1849337, 2641910, 3698674, 9246685, 18493370]

約数ペア:

[(1, 18493370), (2, 9246685), (5, 3698674), (7, 2641910), (10, 1849337), (14, 1320955), (35, 528382), (61, 303170), (70, 264191), (71, 260470), (122, 151585), (142, 130235), (305, 60634), (355, 52094), (427, 43310), (497, 37210), (610, 30317), (710, 26047), (854, 21655), (994, 18605), (2135, 8662), (2485, 7442), (3721, 4970), (4270, 4331)]