19885736

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{1787}}^1$

素因数の和:1913

約数の個数: 32

約数和(自身を含む): 40551840

約数和(自身を除く): 20666104

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 107, 214, 428, 856, 1391, 1787, 2782, 3574, 5564, 7148, 11128, 14296, 23231, 46462, 92924, 185848, 191209, 382418, 764836, 1529672, 2485717, 4971434, 9942868, 19885736]

約数ペア:

[(1, 19885736), (2, 9942868), (4, 4971434), (8, 2485717), (13, 1529672), (26, 764836), (52, 382418), (104, 191209), (107, 185848), (214, 92924), (428, 46462), (856, 23231), (1391, 14296), (1787, 11128), (2782, 7148), (3574, 5564)]