21084076

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{2917}}^1$

素因数の和:3073

約数の個数: 24

約数和(自身を含む): 40034960

約数和(自身を除く): 18950884

約数列:

[1, 2, 4, 13, 26, 52, 139, 278, 556, 1807, 2917, 3614, 5834, 7228, 11668, 37921, 75842, 151684, 405463, 810926, 1621852, 5271019, 10542038, 21084076]

約数ペア:

[(1, 21084076), (2, 10542038), (4, 5271019), (13, 1621852), (26, 810926), (52, 405463), (139, 151684), (278, 75842), (556, 37921), (1807, 11668), (2917, 7228), (3614, 5834)]