221937975

素因数分解:

$3^5\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{307}}^1$

素因数の和:356

約数の個数: 144

約数和(自身を含む): 500467968

約数和(自身を除く): 278529993

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 25, 27, 35, 45, 51, 63, 75, 81, 85, 105, 119, 135, 153, 175, 189, 225, 243, 255, 307, 315, 357, 405, 425, 459, 525, 567, 595, 675, 765, 921, 945, 1071, 1215, 1275, 1377, 1535, 1575, 1701, 1785, 2025, 2149, 2295, 2763, 2835, 2975, 3213, 3825, 4131, 4605, 4725, 5219, 5355, 6075, 6447, 6885, 7675, 8289, 8505, 8925, 9639, 10745, 11475, 13815, 14175, 15657, 16065, 19341, 20655, 23025, 24867, 26095, 26775, 28917, 32235, 34425, 36533, 41445, 42525, 46971, 48195, 53725, 58023, 69075, 74601, 78285, 80325, 96705, 103275, 109599, 124335, 130475, 140913, 144585, 161175, 174069, 182665, 207225, 234855, 240975, 290115, 328797, 373005, 391425, 422739, 483525, 522207, 547995, 621675, 704565, 722925, 870345, 913325, 986391, 1174275, 1268217, 1450575, 1643985, 1865025, 2113695, 2611035, 2739975, 2959173, 3522825, 4351725, 4931955, 6341085, 8219925, 8877519, 10568475, 13055175, 14795865, 24659775, 31705425, 44387595, 73979325, 221937975]

約数ペア:

[(1, 221937975), (3, 73979325), (5, 44387595), (7, 31705425), (9, 24659775), (15, 14795865), (17, 13055175), (21, 10568475), (25, 8877519), (27, 8219925), (35, 6341085), (45, 4931955), (51, 4351725), (63, 3522825), (75, 2959173), (81, 2739975), (85, 2611035), (105, 2113695), (119, 1865025), (135, 1643985), (153, 1450575), (175, 1268217), (189, 1174275), (225, 986391), (243, 913325), (255, 870345), (307, 722925), (315, 704565), (357, 621675), (405, 547995), (425, 522207), (459, 483525), (525, 422739), (567, 391425), (595, 373005), (675, 328797), (765, 290115), (921, 240975), (945, 234855), (1071, 207225), (1215, 182665), (1275, 174069), (1377, 161175), (1535, 144585), (1575, 140913), (1701, 130475), (1785, 124335), (2025, 109599), (2149, 103275), (2295, 96705), (2763, 80325), (2835, 78285), (2975, 74601), (3213, 69075), (3825, 58023), (4131, 53725), (4605, 48195), (4725, 46971), (5219, 42525), (5355, 41445), (6075, 36533), (6447, 34425), (6885, 32235), (7675, 28917), (8289, 26775), (8505, 26095), (8925, 24867), (9639, 23025), (10745, 20655), (11475, 19341), (13815, 16065), (14175, 15657)]