20853970

素因数分解:

$2^1\times 5^1\times {\mathrm{1097}}^1\times {\mathrm{1901}}^1$

素因数の和:3005

約数の個数: 16

約数和(自身を含む): 37591128

約数和(自身を除く): 16737158

約数列:

[1, 2, 5, 10, 1097, 1901, 2194, 3802, 5485, 9505, 10970, 19010, 2085397, 4170794, 10426985, 20853970]

約数ペア:

[(1, 20853970), (2, 10426985), (5, 4170794), (10, 2085397), (1097, 19010), (1901, 10970), (2194, 9505), (3802, 5485)]