21616210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{419}}^1$

素因数の和:511

約数の個数: 64

約数和(自身を含む): 49351680

約数和(自身を除く): 27735470

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 67, 70, 77, 110, 134, 154, 335, 385, 419, 469, 670, 737, 770, 838, 938, 1474, 2095, 2345, 2933, 3685, 4190, 4609, 4690, 5159, 5866, 7370, 9218, 10318, 14665, 23045, 25795, 28073, 29330, 32263, 46090, 51590, 56146, 64526, 140365, 161315, 196511, 280730, 308803, 322630, 393022, 617606, 982555, 1544015, 1965110, 2161621, 3088030, 4323242, 10808105, 21616210]

約数ペア:

[(1, 21616210), (2, 10808105), (5, 4323242), (7, 3088030), (10, 2161621), (11, 1965110), (14, 1544015), (22, 982555), (35, 617606), (55, 393022), (67, 322630), (70, 308803), (77, 280730), (110, 196511), (134, 161315), (154, 140365), (335, 64526), (385, 56146), (419, 51590), (469, 46090), (670, 32263), (737, 29330), (770, 28073), (838, 25795), (938, 23045), (1474, 14665), (2095, 10318), (2345, 9218), (2933, 7370), (3685, 5866), (4190, 5159), (4609, 4690)]