20494994

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{139}}^1$

素因数の和:314

約数の個数: 32

約数和(自身を含む): 34292160

約数和(自身を除く): 13797166

約数列:

[1, 2, 13, 26, 53, 106, 107, 139, 214, 278, 689, 1378, 1391, 1807, 2782, 3614, 5671, 7367, 11342, 14734, 14873, 29746, 73723, 95771, 147446, 191542, 193349, 386698, 788269, 1576538, 10247497, 20494994]

約数ペア:

[(1, 20494994), (2, 10247497), (13, 1576538), (26, 788269), (53, 386698), (106, 193349), (107, 191542), (139, 147446), (214, 95771), (278, 73723), (689, 29746), (1378, 14873), (1391, 14734), (1807, 11342), (2782, 7367), (3614, 5671)]