20187156938

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{953}}^1\times {\mathrm{18947}}^1$

素因数の和:19958

約数の個数: 32

約数和(自身を含む): 33405172416

約数和(自身を除く): 13218015478

約数列:

[1, 2, 13, 26, 43, 86, 559, 953, 1118, 1906, 12389, 18947, 24778, 37894, 40979, 81958, 246311, 492622, 532727, 814721, 1065454, 1629442, 10591373, 18056491, 21182746, 36112982, 234734383, 469468766, 776429113, 1552858226, 10093578469, 20187156938]

約数ペア:

[(1, 20187156938), (2, 10093578469), (13, 1552858226), (26, 776429113), (43, 469468766), (86, 234734383), (559, 36112982), (953, 21182746), (1118, 18056491), (1906, 10591373), (12389, 1629442), (18947, 1065454), (24778, 814721), (37894, 532727), (40979, 492622), (81958, 246311)]