18687854

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{4129}}^1$

素因数の和:4235

約数の個数: 16

約数和(自身を含む): 29339520

約数和(自身を除く): 10651666

約数列:

[1, 2, 31, 62, 73, 146, 2263, 4129, 4526, 8258, 127999, 255998, 301417, 602834, 9343927, 18687854]

約数ペア:

[(1, 18687854), (2, 9343927), (31, 602834), (62, 301417), (73, 255998), (146, 127999), (2263, 8258), (4129, 4526)]