18959878

素因数分解:

$2^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{9743}}^1$

素因数の和:9891

約数の個数: 16

約数和(自身を含む): 32739840

約数和(自身を除く): 13779962

約数列:

[1, 2, 7, 14, 139, 278, 973, 1946, 9743, 19486, 68201, 136402, 1354277, 2708554, 9479939, 18959878]

約数ペア:

[(1, 18959878), (2, 9479939), (7, 2708554), (14, 1354277), (139, 136402), (278, 68201), (973, 19486), (1946, 9743)]