138966513

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{348287}}^1$

素因数の和:348316

約数の個数: 16

約数和(自身を含む): 222904320

約数和(自身を除く): 83937807

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 348287, 1044861, 2438009, 6617453, 7314027, 19852359, 46322171, 138966513]

約数ペア:

[(1, 138966513), (3, 46322171), (7, 19852359), (19, 7314027), (21, 6617453), (57, 2438009), (133, 1044861), (399, 348287)]