20686638

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{269}}^1\times {\mathrm{1831}}^1$

素因数の和:2112

約数の個数: 32

約数和(自身を含む): 47485440

約数和(自身を除く): 26798802

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 269, 538, 807, 1614, 1831, 1883, 3662, 3766, 5493, 5649, 10986, 11298, 12817, 25634, 38451, 76902, 492539, 985078, 1477617, 2955234, 3447773, 6895546, 10343319, 20686638]

約数ペア:

[(1, 20686638), (2, 10343319), (3, 6895546), (6, 3447773), (7, 2955234), (14, 1477617), (21, 985078), (42, 492539), (269, 76902), (538, 38451), (807, 25634), (1614, 12817), (1831, 11298), (1883, 10986), (3662, 5649), (3766, 5493)]