19516790

素因数分解:

$2^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{9907}}^1$

素因数の和:10111

約数の個数: 16

約数和(自身を含む): 35312112

約数和(自身を除く): 15795322

約数列:

[1, 2, 5, 10, 197, 394, 985, 1970, 9907, 19814, 49535, 99070, 1951679, 3903358, 9758395, 19516790]

約数ペア:

[(1, 19516790), (2, 9758395), (5, 3903358), (10, 1951679), (197, 99070), (394, 49535), (985, 19814), (1970, 9907)]