28087213

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{499}}^1$

素因数の和:577

約数の個数: 32

約数和(自身を含む): 38016000

約数和(自身を除く): 9928787

約数列:

[1, 7, 11, 17, 43, 77, 119, 187, 301, 473, 499, 731, 1309, 3311, 3493, 5117, 5489, 8041, 8483, 21457, 38423, 56287, 59381, 93313, 150199, 236027, 364769, 653191, 1652189, 2553383, 4012459, 28087213]

約数ペア:

[(1, 28087213), (7, 4012459), (11, 2553383), (17, 1652189), (43, 653191), (77, 364769), (119, 236027), (187, 150199), (301, 93313), (473, 59381), (499, 56287), (731, 38423), (1309, 21457), (3311, 8483), (3493, 8041), (5117, 5489)]