19990328

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{47147}}^1$

素因数の和:47206

約数の個数: 16

約数和(自身を含む): 38189880

約数和(自身を除く): 18199552

約数列:

[1, 2, 4, 8, 53, 106, 212, 424, 47147, 94294, 188588, 377176, 2498791, 4997582, 9995164, 19990328]

約数ペア:

[(1, 19990328), (2, 9995164), (4, 4997582), (8, 2498791), (53, 377176), (106, 188588), (212, 94294), (424, 47147)]