208787859

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{1619}}^1$

素因数の和:1744

約数の個数: 48

約数和(自身を含む): 363916800

約数和(自身を除く): 155128941

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 89, 161, 207, 267, 483, 623, 801, 1449, 1619, 1869, 2047, 4857, 5607, 6141, 11333, 14329, 14571, 18423, 33999, 37237, 42987, 101997, 111711, 128961, 144091, 260659, 335133, 432273, 781977, 1008637, 1296819, 2345931, 3025911, 3314093, 9077733, 9942279, 23198651, 29826837, 69595953, 208787859]

約数ペア:

[(1, 208787859), (3, 69595953), (7, 29826837), (9, 23198651), (21, 9942279), (23, 9077733), (63, 3314093), (69, 3025911), (89, 2345931), (161, 1296819), (207, 1008637), (267, 781977), (483, 432273), (623, 335133), (801, 260659), (1449, 144091), (1619, 128961), (1869, 111711), (2047, 101997), (4857, 42987), (5607, 37237), (6141, 33999), (11333, 18423), (14329, 14571)]