1666871878

素因数分解:

$2^1\times 7^1\times {\mathrm{10139}}^1\times {\mathrm{11743}}^1$

素因数の和:21891

約数の個数: 16

約数和(自身を含む): 2858019840

約数和(自身を除く): 1191147962

約数列:

[1, 2, 7, 14, 10139, 11743, 20278, 23486, 70973, 82201, 141946, 164402, 119062277, 238124554, 833435939, 1666871878]

約数ペア:

[(1, 1666871878), (2, 833435939), (7, 238124554), (14, 119062277), (10139, 164402), (11743, 141946), (20278, 82201), (23486, 70973)]