20808634

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{199}}^1$

素因数の和:323

約数の個数: 48

約数和(自身を含む): 40219200

約数和(自身を除く): 19410566

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 97, 98, 154, 194, 199, 398, 539, 679, 1067, 1078, 1358, 1393, 2134, 2189, 2786, 4378, 4753, 7469, 9506, 9751, 14938, 15323, 19303, 19502, 30646, 38606, 52283, 104566, 107261, 135121, 212333, 214522, 270242, 424666, 945847, 1486331, 1891694, 2972662, 10404317, 20808634]

約数ペア:

[(1, 20808634), (2, 10404317), (7, 2972662), (11, 1891694), (14, 1486331), (22, 945847), (49, 424666), (77, 270242), (97, 214522), (98, 212333), (154, 135121), (194, 107261), (199, 104566), (398, 52283), (539, 38606), (679, 30646), (1067, 19502), (1078, 19303), (1358, 15323), (1393, 14938), (2134, 9751), (2189, 9506), (2786, 7469), (4378, 4753)]