19983734

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{10103}}^1$

素因数の和:10171

約数の個数: 16

約数和(自身を含む): 32009472

約数和(自身を除く): 12025738

約数列:

[1, 2, 23, 43, 46, 86, 989, 1978, 10103, 20206, 232369, 434429, 464738, 868858, 9991867, 19983734]

約数ペア:

[(1, 19983734), (2, 9991867), (23, 868858), (43, 464738), (46, 434429), (86, 232369), (989, 20206), (1978, 10103)]