20081369

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{29}}^1$

素因数の和:110

約数の個数: 48

約数和(自身を含む): 28667520

約数和(自身を除く): 8586151

約数列:

[1, 7, 11, 17, 23, 29, 77, 119, 161, 187, 203, 253, 319, 391, 493, 529, 667, 1309, 1771, 2233, 2737, 3451, 3703, 4301, 4669, 5423, 5819, 7337, 8993, 11339, 15341, 30107, 37961, 40733, 51359, 62951, 79373, 98923, 107387, 124729, 168751, 260797, 692461, 873103, 1181257, 1825579, 2868767, 20081369]

約数ペア:

[(1, 20081369), (7, 2868767), (11, 1825579), (17, 1181257), (23, 873103), (29, 692461), (77, 260797), (119, 168751), (161, 124729), (187, 107387), (203, 98923), (253, 79373), (319, 62951), (391, 51359), (493, 40733), (529, 37961), (667, 30107), (1309, 15341), (1771, 11339), (2233, 8993), (2737, 7337), (3451, 5819), (3703, 5423), (4301, 4669)]