21963123

素因数分解:

$3^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1277}}^1$

素因数の和:1313

約数の個数: 48

約数和(自身を含む): 40793760

約数和(自身を除く): 18830637

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 49, 63, 91, 117, 147, 189, 273, 351, 441, 637, 819, 1277, 1323, 1911, 2457, 3831, 5733, 8939, 11493, 16601, 17199, 26817, 34479, 49803, 62573, 80451, 116207, 149409, 187719, 241353, 348621, 448227, 563157, 813449, 1045863, 1689471, 2440347, 3137589, 7321041, 21963123]

約数ペア:

[(1, 21963123), (3, 7321041), (7, 3137589), (9, 2440347), (13, 1689471), (21, 1045863), (27, 813449), (39, 563157), (49, 448227), (63, 348621), (91, 241353), (117, 187719), (147, 149409), (189, 116207), (273, 80451), (351, 62573), (441, 49803), (637, 34479), (819, 26817), (1277, 17199), (1323, 16601), (1911, 11493), (2457, 8939), (3831, 5733)]