18787041

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1$

素因数の和:175

約数の個数: 72

約数和(自身を含む): 35479080

約数和(自身を除く): 16692039

約数列:

[1, 3, 7, 9, 13, 21, 29, 39, 49, 63, 87, 91, 113, 117, 147, 203, 261, 273, 339, 377, 441, 609, 637, 791, 819, 1017, 1131, 1421, 1469, 1827, 1911, 2373, 2639, 3277, 3393, 4263, 4407, 5537, 5733, 7119, 7917, 9831, 10283, 12789, 13221, 16611, 18473, 22939, 23751, 29493, 30849, 42601, 49833, 55419, 68817, 71981, 92547, 127803, 160573, 166257, 206451, 215943, 298207, 383409, 481719, 647829, 894621, 1445157, 2087449, 2683863, 6262347, 18787041]

約数ペア:

[(1, 18787041), (3, 6262347), (7, 2683863), (9, 2087449), (13, 1445157), (21, 894621), (29, 647829), (39, 481719), (49, 383409), (63, 298207), (87, 215943), (91, 206451), (113, 166257), (117, 160573), (147, 127803), (203, 92547), (261, 71981), (273, 68817), (339, 55419), (377, 49833), (441, 42601), (609, 30849), (637, 29493), (791, 23751), (819, 22939), (1017, 18473), (1131, 16611), (1421, 13221), (1469, 12789), (1827, 10283), (1911, 9831), (2373, 7917), (2639, 7119), (3277, 5733), (3393, 5537), (4263, 4407)]