21485420152

素因数分解:

$2^3\times 7^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1\times {\mathrm{37811}}^1$

素因数の和:38036

約数の個数: 64

約数和(自身を含む): 47007878400

約数和(自身を除く): 25522458248

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 73, 139, 146, 278, 292, 511, 556, 584, 973, 1022, 1112, 1946, 2044, 3892, 4088, 7784, 10147, 20294, 37811, 40588, 71029, 75622, 81176, 142058, 151244, 264677, 284116, 302488, 529354, 568232, 1058708, 2117416, 2760203, 5255729, 5520406, 10511458, 11040812, 19321421, 21022916, 22081624, 36790103, 38642842, 42045832, 73580206, 77285684, 147160412, 154571368, 294320824, 383668217, 767336434, 1534672868, 2685677519, 3069345736, 5371355038, 10742710076, 21485420152]

約数ペア:

[(1, 21485420152), (2, 10742710076), (4, 5371355038), (7, 3069345736), (8, 2685677519), (14, 1534672868), (28, 767336434), (56, 383668217), (73, 294320824), (139, 154571368), (146, 147160412), (278, 77285684), (292, 73580206), (511, 42045832), (556, 38642842), (584, 36790103), (973, 22081624), (1022, 21022916), (1112, 19321421), (1946, 11040812), (2044, 10511458), (3892, 5520406), (4088, 5255729), (7784, 2760203), (10147, 2117416), (20294, 1058708), (37811, 568232), (40588, 529354), (71029, 302488), (75622, 284116), (81176, 264677), (142058, 151244)]