19941856

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{313}}^1$

素因数の和:515

約数の個数: 48

約数和(自身を含む): 43203888

約数和(自身を除く): 23262032

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 176, 181, 313, 352, 362, 626, 724, 1252, 1448, 1991, 2504, 2896, 3443, 3982, 5008, 5792, 6886, 7964, 10016, 13772, 15928, 27544, 31856, 55088, 56653, 63712, 110176, 113306, 226612, 453224, 623183, 906448, 1246366, 1812896, 2492732, 4985464, 9970928, 19941856]

約数ペア:

[(1, 19941856), (2, 9970928), (4, 4985464), (8, 2492732), (11, 1812896), (16, 1246366), (22, 906448), (32, 623183), (44, 453224), (88, 226612), (176, 113306), (181, 110176), (313, 63712), (352, 56653), (362, 55088), (626, 31856), (724, 27544), (1252, 15928), (1448, 13772), (1991, 10016), (2504, 7964), (2896, 6886), (3443, 5792), (3982, 5008)]