18897795

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{3529}}^1$

素因数の和:3564

約数の個数: 48

約数和(自身を含む): 39648960

約数和(自身を除く): 20751165

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 35, 45, 51, 63, 85, 105, 119, 153, 255, 315, 357, 595, 765, 1071, 1785, 3529, 5355, 10587, 17645, 24703, 31761, 52935, 59993, 74109, 123515, 158805, 179979, 222327, 299965, 370545, 419951, 539937, 899895, 1111635, 1259853, 2099755, 2699685, 3779559, 6299265, 18897795]

約数ペア:

[(1, 18897795), (3, 6299265), (5, 3779559), (7, 2699685), (9, 2099755), (15, 1259853), (17, 1111635), (21, 899895), (35, 539937), (45, 419951), (51, 370545), (63, 299965), (85, 222327), (105, 179979), (119, 158805), (153, 123515), (255, 74109), (315, 59993), (357, 52935), (595, 31761), (765, 24703), (1071, 17645), (1785, 10587), (3529, 5355)]