20802166

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{839}}^1$

素因数の和:889

約数の個数: 48

約数和(自身を含む): 41368320

約数和(自身を除く): 20566154

約数列:

[1, 2, 7, 11, 14, 22, 23, 46, 49, 77, 98, 154, 161, 253, 322, 506, 539, 839, 1078, 1127, 1678, 1771, 2254, 3542, 5873, 9229, 11746, 12397, 18458, 19297, 24794, 38594, 41111, 64603, 82222, 129206, 135079, 212267, 270158, 424534, 452221, 904442, 945553, 1485869, 1891106, 2971738, 10401083, 20802166]

約数ペア:

[(1, 20802166), (2, 10401083), (7, 2971738), (11, 1891106), (14, 1485869), (22, 945553), (23, 904442), (46, 452221), (49, 424534), (77, 270158), (98, 212267), (154, 135079), (161, 129206), (253, 82222), (322, 64603), (506, 41111), (539, 38594), (839, 24794), (1078, 19297), (1127, 18458), (1678, 12397), (1771, 11746), (2254, 9229), (3542, 5873)]