21363356

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1213}}^1$

素因数の和:1278

約数の個数: 48

約数和(自身を含む): 46501056

約数和(自身を除く): 25137700

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 37, 68, 74, 119, 148, 238, 259, 476, 518, 629, 1036, 1213, 1258, 2426, 2516, 4403, 4852, 8491, 8806, 16982, 17612, 20621, 33964, 41242, 44881, 82484, 89762, 144347, 179524, 288694, 314167, 577388, 628334, 762977, 1256668, 1525954, 3051908, 5340839, 10681678, 21363356]

約数ペア:

[(1, 21363356), (2, 10681678), (4, 5340839), (7, 3051908), (14, 1525954), (17, 1256668), (28, 762977), (34, 628334), (37, 577388), (68, 314167), (74, 288694), (119, 179524), (148, 144347), (238, 89762), (259, 82484), (476, 44881), (518, 41242), (629, 33964), (1036, 20621), (1213, 17612), (1258, 16982), (2426, 8806), (2516, 8491), (4403, 4852)]