21380084

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{283}}^1$

素因数の和:416

約数の個数: 48

約数和(自身を含む): 43799616

約数和(自身を除く): 22419532

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 101, 187, 202, 283, 374, 404, 566, 748, 1111, 1132, 1717, 2222, 3113, 3434, 4444, 4811, 6226, 6868, 9622, 12452, 18887, 19244, 28583, 37774, 52921, 57166, 75548, 105842, 114332, 211684, 314413, 485911, 628826, 971822, 1257652, 1943644, 5345021, 10690042, 21380084]

約数ペア:

[(1, 21380084), (2, 10690042), (4, 5345021), (11, 1943644), (17, 1257652), (22, 971822), (34, 628826), (44, 485911), (68, 314413), (101, 211684), (187, 114332), (202, 105842), (283, 75548), (374, 57166), (404, 52921), (566, 37774), (748, 28583), (1111, 19244), (1132, 18887), (1717, 12452), (2222, 9622), (3113, 6868), (3434, 6226), (4444, 4811)]