21230902

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{83}}^1\times {\mathrm{151}}^1$

素因数の和:265

約数の個数: 48

約数和(自身を含む): 40755456

約数和(自身を除く): 19524554

約数列:

[1, 2, 7, 11, 14, 22, 77, 83, 121, 151, 154, 166, 242, 302, 581, 847, 913, 1057, 1162, 1661, 1694, 1826, 2114, 3322, 6391, 10043, 11627, 12533, 12782, 18271, 20086, 23254, 25066, 36542, 70301, 87731, 127897, 137863, 140602, 175462, 255794, 275726, 965041, 1516493, 1930082, 3032986, 10615451, 21230902]

約数ペア:

[(1, 21230902), (2, 10615451), (7, 3032986), (11, 1930082), (14, 1516493), (22, 965041), (77, 275726), (83, 255794), (121, 175462), (151, 140602), (154, 137863), (166, 127897), (242, 87731), (302, 70301), (581, 36542), (847, 25066), (913, 23254), (1057, 20086), (1162, 18271), (1661, 12782), (1694, 12533), (1826, 11627), (2114, 10043), (3322, 6391)]