19967710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{2617}}^1$

素因数の和:2740

約数の個数: 32

約数和(自身を含む): 41469120

約数和(自身を除く): 21501410

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 109, 218, 545, 763, 1090, 1526, 2617, 3815, 5234, 7630, 13085, 18319, 26170, 36638, 91595, 183190, 285253, 570506, 1426265, 1996771, 2852530, 3993542, 9983855, 19967710]

約数ペア:

[(1, 19967710), (2, 9983855), (5, 3993542), (7, 2852530), (10, 1996771), (14, 1426265), (35, 570506), (70, 285253), (109, 183190), (218, 91595), (545, 36638), (763, 26170), (1090, 18319), (1526, 13085), (2617, 7630), (3815, 5234)]