21856254

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{4373}}^1$

素因数の和:4409

約数の個数: 48

約数和(自身を含む): 53852688

約数和(自身を除く): 31996434

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 34, 42, 49, 51, 98, 102, 119, 147, 238, 294, 357, 714, 833, 1666, 2499, 4373, 4998, 8746, 13119, 26238, 30611, 61222, 74341, 91833, 148682, 183666, 214277, 223023, 428554, 446046, 520387, 642831, 1040774, 1285662, 1561161, 3122322, 3642709, 7285418, 10928127, 21856254]

約数ペア:

[(1, 21856254), (2, 10928127), (3, 7285418), (6, 3642709), (7, 3122322), (14, 1561161), (17, 1285662), (21, 1040774), (34, 642831), (42, 520387), (49, 446046), (51, 428554), (98, 223023), (102, 214277), (119, 183666), (147, 148682), (238, 91833), (294, 74341), (357, 61222), (714, 30611), (833, 26238), (1666, 13119), (2499, 8746), (4373, 4998)]