19947542

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{317}}^1\times {\mathrm{431}}^1$

素因数の和:823

約数の個数: 16

約数和(自身を含む): 30497472

約数和(自身を除く): 10549930

約数列:

[1, 2, 73, 146, 317, 431, 634, 862, 23141, 31463, 46282, 62926, 136627, 273254, 9973771, 19947542]

約数ペア:

[(1, 19947542), (2, 9973771), (73, 273254), (146, 136627), (317, 62926), (431, 46282), (634, 31463), (862, 23141)]