19884216

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{691}}^1$

素因数の和:820

約数の個数: 64

約数和(自身を含む): 54806400

約数和(自身を除く): 34922184

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 88, 109, 132, 218, 264, 327, 436, 654, 691, 872, 1199, 1308, 1382, 2073, 2398, 2616, 2764, 3597, 4146, 4796, 5528, 7194, 7601, 8292, 9592, 14388, 15202, 16584, 22803, 28776, 30404, 45606, 60808, 75319, 91212, 150638, 182424, 225957, 301276, 451914, 602552, 828509, 903828, 1657018, 1807656, 2485527, 3314036, 4971054, 6628072, 9942108, 19884216]

約数ペア:

[(1, 19884216), (2, 9942108), (3, 6628072), (4, 4971054), (6, 3314036), (8, 2485527), (11, 1807656), (12, 1657018), (22, 903828), (24, 828509), (33, 602552), (44, 451914), (66, 301276), (88, 225957), (109, 182424), (132, 150638), (218, 91212), (264, 75319), (327, 60808), (436, 45606), (654, 30404), (691, 28776), (872, 22803), (1199, 16584), (1308, 15202), (1382, 14388), (2073, 9592), (2398, 8292), (2616, 7601), (2764, 7194), (3597, 5528), (4146, 4796)]