21170872797

素因数分解:

$3^1\times {\mathrm{19}}^3\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{337}}^1$

素因数の和:511

約数の個数: 64

約数和(自身を含む): 31009904640

約数和(自身を除く): 9839031843

約数列:

[1, 3, 19, 43, 57, 71, 129, 213, 337, 361, 817, 1011, 1083, 1349, 2451, 3053, 4047, 6403, 6859, 9159, 14491, 15523, 19209, 20577, 23927, 25631, 43473, 46569, 58007, 71781, 76893, 121657, 174021, 275329, 294937, 364971, 454613, 486989, 825987, 884811, 1028861, 1102133, 1363839, 1460967, 2311483, 3086583, 3306399, 5231251, 6934449, 8637647, 15693753, 19548359, 20940527, 25912941, 58645077, 62821581, 99393769, 164115293, 298181307, 371418821, 492345879, 1114256463, 7056957599, 21170872797]

約数ペア:

[(1, 21170872797), (3, 7056957599), (19, 1114256463), (43, 492345879), (57, 371418821), (71, 298181307), (129, 164115293), (213, 99393769), (337, 62821581), (361, 58645077), (817, 25912941), (1011, 20940527), (1083, 19548359), (1349, 15693753), (2451, 8637647), (3053, 6934449), (4047, 5231251), (6403, 3306399), (6859, 3086583), (9159, 2311483), (14491, 1460967), (15523, 1363839), (19209, 1102133), (20577, 1028861), (23927, 884811), (25631, 825987), (43473, 486989), (46569, 454613), (58007, 364971), (71781, 294937), (76893, 275329), (121657, 174021)]