20173877871

素因数分解:

$3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1987}}^1\times {\mathrm{3529}}^1$

素因数の和:5663

約数の個数: 32

約数和(自身を含む): 30989898240

約数和(自身を除く): 10816020369

約数列:

[1, 3, 7, 21, 137, 411, 959, 1987, 2877, 3529, 5961, 10587, 13909, 24703, 41727, 74109, 272219, 483473, 816657, 1450419, 1905533, 3384311, 5716599, 7012123, 10152933, 21036369, 49084861, 147254583, 960660851, 2881982553, 6724625957, 20173877871]

約数ペア:

[(1, 20173877871), (3, 6724625957), (7, 2881982553), (21, 960660851), (137, 147254583), (411, 49084861), (959, 21036369), (1987, 10152933), (2877, 7012123), (3529, 5716599), (5961, 3384311), (10587, 1905533), (13909, 1450419), (24703, 816657), (41727, 483473), (74109, 272219)]