21727090

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1$

素因数の和:200

約数の個数: 96

約数和(自身を含む): 51710400

約数和(自身を除く): 29983310

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 29, 35, 49, 55, 58, 70, 77, 98, 110, 139, 145, 154, 203, 245, 278, 290, 319, 385, 406, 490, 539, 638, 695, 770, 973, 1015, 1078, 1390, 1421, 1529, 1595, 1946, 2030, 2233, 2695, 2842, 3058, 3190, 4031, 4466, 4865, 5390, 6811, 7105, 7645, 8062, 9730, 10703, 11165, 13622, 14210, 15290, 15631, 20155, 21406, 22330, 28217, 31262, 34055, 40310, 44341, 53515, 56434, 68110, 74921, 78155, 88682, 107030, 141085, 149842, 156310, 197519, 221705, 282170, 310387, 374605, 395038, 443410, 620774, 749210, 987595, 1551935, 1975190, 2172709, 3103870, 4345418, 10863545, 21727090]

約数ペア:

[(1, 21727090), (2, 10863545), (5, 4345418), (7, 3103870), (10, 2172709), (11, 1975190), (14, 1551935), (22, 987595), (29, 749210), (35, 620774), (49, 443410), (55, 395038), (58, 374605), (70, 310387), (77, 282170), (98, 221705), (110, 197519), (139, 156310), (145, 149842), (154, 141085), (203, 107030), (245, 88682), (278, 78155), (290, 74921), (319, 68110), (385, 56434), (406, 53515), (490, 44341), (539, 40310), (638, 34055), (695, 31262), (770, 28217), (973, 22330), (1015, 21406), (1078, 20155), (1390, 15631), (1421, 15290), (1529, 14210), (1595, 13622), (1946, 11165), (2030, 10703), (2233, 9730), (2695, 8062), (2842, 7645), (3058, 7105), (3190, 6811), (4031, 5390), (4466, 4865)]