21044793

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{233}}^1$

素因数の和:294

約数の個数: 64

約数和(自身を含む): 38817792

約数和(自身を除く): 17772999

約数列:

[1, 3, 7, 11, 17, 21, 23, 33, 51, 69, 77, 119, 161, 187, 231, 233, 253, 357, 391, 483, 561, 699, 759, 1173, 1309, 1631, 1771, 2563, 2737, 3927, 3961, 4301, 4893, 5313, 5359, 7689, 8211, 11883, 12903, 16077, 17941, 27727, 30107, 37513, 43571, 53823, 58949, 83181, 90321, 91103, 112539, 130713, 176847, 273309, 304997, 412643, 637721, 914991, 1002133, 1237929, 1913163, 3006399, 7014931, 21044793]

約数ペア:

[(1, 21044793), (3, 7014931), (7, 3006399), (11, 1913163), (17, 1237929), (21, 1002133), (23, 914991), (33, 637721), (51, 412643), (69, 304997), (77, 273309), (119, 176847), (161, 130713), (187, 112539), (231, 91103), (233, 90321), (253, 83181), (357, 58949), (391, 53823), (483, 43571), (561, 37513), (699, 30107), (759, 27727), (1173, 17941), (1309, 16077), (1631, 12903), (1771, 11883), (2563, 8211), (2737, 7689), (3927, 5359), (3961, 5313), (4301, 4893)]