20178032889

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{50571511}}^1$

素因数の和:50571540

約数の個数: 16

約数和(自身を含む): 32365767680

約数和(自身を除く): 12187734791

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 50571511, 151714533, 354000577, 960858709, 1062001731, 2882576127, 6726010963, 20178032889]

約数ペア:

[(1, 20178032889), (3, 6726010963), (7, 2882576127), (19, 1062001731), (21, 960858709), (57, 354000577), (133, 151714533), (399, 50571511)]