19181090

素因数分解:

$2^1\times 5^1\times {\mathrm{1009}}^1\times {\mathrm{1901}}^1$

素因数の和:2917

約数の個数: 16

約数和(自身を含む): 34578360

約数和(自身を除く): 15397270

約数列:

[1, 2, 5, 10, 1009, 1901, 2018, 3802, 5045, 9505, 10090, 19010, 1918109, 3836218, 9590545, 19181090]

約数ペア:

[(1, 19181090), (2, 9590545), (5, 3836218), (10, 1918109), (1009, 19010), (1901, 10090), (2018, 9505), (3802, 5045)]