19869772

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{2749}}^1$

素因数の和:2905

約数の個数: 24

約数和(自身を含む): 37730000

約数和(自身を除く): 17860228

約数列:

[1, 2, 4, 13, 26, 52, 139, 278, 556, 1807, 2749, 3614, 5498, 7228, 10996, 35737, 71474, 142948, 382111, 764222, 1528444, 4967443, 9934886, 19869772]

約数ペア:

[(1, 19869772), (2, 9934886), (4, 4967443), (13, 1528444), (26, 764222), (52, 382111), (139, 142948), (278, 71474), (556, 35737), (1807, 10996), (2749, 7228), (3614, 5498)]