20178438

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{11173}}^1$

素因数の和:11228

約数の個数: 32

約数和(自身を含む): 47198976

約数和(自身を除く): 27020538

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 43, 86, 129, 258, 301, 602, 903, 1806, 11173, 22346, 33519, 67038, 78211, 156422, 234633, 469266, 480439, 960878, 1441317, 2882634, 3363073, 6726146, 10089219, 20178438]

約数ペア:

[(1, 20178438), (2, 10089219), (3, 6726146), (6, 3363073), (7, 2882634), (14, 1441317), (21, 960878), (42, 480439), (43, 469266), (86, 234633), (129, 156422), (258, 78211), (301, 67038), (602, 33519), (903, 22346), (1806, 11173)]