51870861

素因数分解:

$3^4\times 7^3\times {\mathrm{1867}}^1$

素因数の和:1900

約数の個数: 40

約数和(自身を含む): 90411200

約数和(自身を除く): 38540339

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 343, 441, 567, 1029, 1323, 1867, 3087, 3969, 5601, 9261, 13069, 16803, 27783, 39207, 50409, 91483, 117621, 151227, 274449, 352863, 640381, 823347, 1058589, 1921143, 2470041, 5763429, 7410123, 17290287, 51870861]

約数ペア:

[(1, 51870861), (3, 17290287), (7, 7410123), (9, 5763429), (21, 2470041), (27, 1921143), (49, 1058589), (63, 823347), (81, 640381), (147, 352863), (189, 274449), (343, 151227), (441, 117621), (567, 91483), (1029, 50409), (1323, 39207), (1867, 27783), (3087, 16803), (3969, 13069), (5601, 9261)]