19901049

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41203}}^1$

素因数の和:41236

約数の個数: 16

約数和(自身を含む): 31644672

約数和(自身を除く): 11743623

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 41203, 123609, 288421, 865263, 947669, 2843007, 6633683, 19901049]

約数ペア:

[(1, 19901049), (3, 6633683), (7, 2843007), (21, 947669), (23, 865263), (69, 288421), (161, 123609), (483, 41203)]