201781881

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{677}}^1$

素因数の和:795

約数の個数: 64

約数和(自身を含む): 364492800

約数和(自身を除く): 162710919

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 83, 133, 171, 189, 249, 399, 513, 581, 677, 747, 1197, 1577, 1743, 2031, 2241, 3591, 4731, 4739, 5229, 6093, 11039, 12863, 14193, 14217, 15687, 18279, 33117, 38589, 42579, 42651, 56191, 90041, 99351, 115767, 127953, 168573, 270123, 298053, 347301, 393337, 505719, 810369, 1067629, 1180011, 1517157, 2431107, 3202887, 3540033, 7473403, 9608661, 10620099, 22420209, 28825983, 67260627, 201781881]

約数ペア:

[(1, 201781881), (3, 67260627), (7, 28825983), (9, 22420209), (19, 10620099), (21, 9608661), (27, 7473403), (57, 3540033), (63, 3202887), (83, 2431107), (133, 1517157), (171, 1180011), (189, 1067629), (249, 810369), (399, 505719), (513, 393337), (581, 347301), (677, 298053), (747, 270123), (1197, 168573), (1577, 127953), (1743, 115767), (2031, 99351), (2241, 90041), (3591, 56191), (4731, 42651), (4739, 42579), (5229, 38589), (6093, 33117), (11039, 18279), (12863, 15687), (14193, 14217)]