18687198

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{72431}}^1$

素因数の和:72479

約数の個数: 16

約数和(自身を含む): 38244096

約数和(自身を除く): 19556898

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 72431, 144862, 217293, 434586, 3114533, 6229066, 9343599, 18687198]

約数ペア:

[(1, 18687198), (2, 9343599), (3, 6229066), (6, 3114533), (43, 434586), (86, 217293), (129, 144862), (258, 72431)]