19738818

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{761}}^1$

素因数の和:911

約数の個数: 48

約数和(自身を含む): 47073312

約数和(自身を除く): 27334494

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 131, 198, 262, 393, 761, 786, 1179, 1441, 1522, 2283, 2358, 2882, 4323, 4566, 6849, 8371, 8646, 12969, 13698, 16742, 25113, 25938, 50226, 75339, 99691, 150678, 199382, 299073, 598146, 897219, 1096601, 1794438, 2193202, 3289803, 6579606, 9869409, 19738818]

約数ペア:

[(1, 19738818), (2, 9869409), (3, 6579606), (6, 3289803), (9, 2193202), (11, 1794438), (18, 1096601), (22, 897219), (33, 598146), (66, 299073), (99, 199382), (131, 150678), (198, 99691), (262, 75339), (393, 50226), (761, 25938), (786, 25113), (1179, 16742), (1441, 13698), (1522, 12969), (2283, 8646), (2358, 8371), (2882, 6849), (4323, 4566)]