18687994

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{5171}}^1$

素因数の和:5325

約数の個数: 16

約数和(自身を含む): 30411360

約数和(自身を除く): 11723366

約数列:

[1, 2, 13, 26, 139, 278, 1807, 3614, 5171, 10342, 67223, 134446, 718769, 1437538, 9343997, 18687994]

約数ペア:

[(1, 18687994), (2, 9343997), (13, 1437538), (26, 718769), (139, 134446), (278, 67223), (1807, 10342), (3614, 5171)]