21482784

素因数分解:

$2^5\times 3^2\times {\mathrm{97}}^1\times {\mathrm{769}}^1$

素因数の和:882

約数の個数: 72

約数和(自身を含む): 61801740

約数和(自身を除く): 40318956

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 97, 144, 194, 288, 291, 388, 582, 769, 776, 873, 1164, 1538, 1552, 1746, 2307, 2328, 3076, 3104, 3492, 4614, 4656, 6152, 6921, 6984, 9228, 9312, 12304, 13842, 13968, 18456, 24608, 27684, 27936, 36912, 55368, 73824, 74593, 110736, 149186, 221472, 223779, 298372, 447558, 596744, 671337, 895116, 1193488, 1342674, 1790232, 2386976, 2685348, 3580464, 5370696, 7160928, 10741392, 21482784]

約数ペア:

[(1, 21482784), (2, 10741392), (3, 7160928), (4, 5370696), (6, 3580464), (8, 2685348), (9, 2386976), (12, 1790232), (16, 1342674), (18, 1193488), (24, 895116), (32, 671337), (36, 596744), (48, 447558), (72, 298372), (96, 223779), (97, 221472), (144, 149186), (194, 110736), (288, 74593), (291, 73824), (388, 55368), (582, 36912), (769, 27936), (776, 27684), (873, 24608), (1164, 18456), (1538, 13968), (1552, 13842), (1746, 12304), (2307, 9312), (2328, 9228), (3076, 6984), (3104, 6921), (3492, 6152), (4614, 4656)]