21811306

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{2011}}^1$

素因数の和:2070

約数の個数: 32

約数和(自身を含む): 39113280

約数和(自身を除く): 17301974

約数列:

[1, 2, 11, 17, 22, 29, 34, 58, 187, 319, 374, 493, 638, 986, 2011, 4022, 5423, 10846, 22121, 34187, 44242, 58319, 68374, 116638, 376057, 641509, 752114, 991423, 1283018, 1982846, 10905653, 21811306]

約数ペア:

[(1, 21811306), (2, 10905653), (11, 1982846), (17, 1283018), (22, 991423), (29, 752114), (34, 641509), (58, 376057), (187, 116638), (319, 68374), (374, 58319), (493, 44242), (638, 34187), (986, 22121), (2011, 10846), (4022, 5423)]