20684998

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:268

約数の個数: 32

約数和(自身を含む): 33619968

約数和(自身を除く): 12934970

約数列:

[1, 2, 31, 37, 62, 71, 74, 127, 142, 254, 1147, 2201, 2294, 2627, 3937, 4402, 4699, 5254, 7874, 9017, 9398, 18034, 81437, 145669, 162874, 279527, 291338, 333629, 559054, 667258, 10342499, 20684998]

約数ペア:

[(1, 20684998), (2, 10342499), (31, 667258), (37, 559054), (62, 333629), (71, 291338), (74, 279527), (127, 162874), (142, 145669), (254, 81437), (1147, 18034), (2201, 9398), (2294, 9017), (2627, 7874), (3937, 5254), (4402, 4699)]