21210042

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{3797}}^1$

素因数の和:3835

約数の個数: 48

約数和(自身を含む): 51956640

約数和(自身を除く): 30746598

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 49, 57, 98, 114, 133, 147, 266, 294, 399, 798, 931, 1862, 2793, 3797, 5586, 7594, 11391, 22782, 26579, 53158, 72143, 79737, 144286, 159474, 186053, 216429, 372106, 432858, 505001, 558159, 1010002, 1116318, 1515003, 3030006, 3535007, 7070014, 10605021, 21210042]

約数ペア:

[(1, 21210042), (2, 10605021), (3, 7070014), (6, 3535007), (7, 3030006), (14, 1515003), (19, 1116318), (21, 1010002), (38, 558159), (42, 505001), (49, 432858), (57, 372106), (98, 216429), (114, 186053), (133, 159474), (147, 144286), (266, 79737), (294, 72143), (399, 53158), (798, 26579), (931, 22782), (1862, 11391), (2793, 7594), (3797, 5586)]