51667821

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1$

素因数の和:231

約数の個数: 64

約数和(自身を含む): 87552000

約数和(自身を除く): 35884179

約数列:

[1, 3, 9, 19, 23, 27, 29, 57, 69, 87, 151, 171, 207, 261, 437, 453, 513, 551, 621, 667, 783, 1311, 1359, 1653, 2001, 2869, 3473, 3933, 4077, 4379, 4959, 6003, 8607, 10419, 11799, 12673, 13137, 14877, 18009, 25821, 31257, 38019, 39411, 65987, 77463, 83201, 93771, 100717, 114057, 118233, 197961, 249603, 302151, 342171, 593883, 748809, 906453, 1781649, 1913623, 2246427, 2719359, 5740869, 17222607, 51667821]

約数ペア:

[(1, 51667821), (3, 17222607), (9, 5740869), (19, 2719359), (23, 2246427), (27, 1913623), (29, 1781649), (57, 906453), (69, 748809), (87, 593883), (151, 342171), (171, 302151), (207, 249603), (261, 197961), (437, 118233), (453, 114057), (513, 100717), (551, 93771), (621, 83201), (667, 77463), (783, 65987), (1311, 39411), (1359, 38019), (1653, 31257), (2001, 25821), (2869, 18009), (3473, 14877), (3933, 13137), (4077, 12673), (4379, 11799), (4959, 10419), (6003, 8607)]