21006510

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1493}}^1$

素因数の和:1577

約数の個数: 64

約数和(自身を含む): 58516992

約数和(自身を除く): 37510482

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 67, 70, 105, 134, 201, 210, 335, 402, 469, 670, 938, 1005, 1407, 1493, 2010, 2345, 2814, 2986, 4479, 4690, 7035, 7465, 8958, 10451, 14070, 14930, 20902, 22395, 31353, 44790, 52255, 62706, 100031, 104510, 156765, 200062, 300093, 313530, 500155, 600186, 700217, 1000310, 1400434, 1500465, 2100651, 3000930, 3501085, 4201302, 7002170, 10503255, 21006510]

約数ペア:

[(1, 21006510), (2, 10503255), (3, 7002170), (5, 4201302), (6, 3501085), (7, 3000930), (10, 2100651), (14, 1500465), (15, 1400434), (21, 1000310), (30, 700217), (35, 600186), (42, 500155), (67, 313530), (70, 300093), (105, 200062), (134, 156765), (201, 104510), (210, 100031), (335, 62706), (402, 52255), (469, 44790), (670, 31353), (938, 22395), (1005, 20902), (1407, 14930), (1493, 14070), (2010, 10451), (2345, 8958), (2814, 7465), (2986, 7035), (4479, 4690)]