209346722

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{787}}^2$

素因数の和:1602

約数の個数: 18

約数和(自身を含む): 340466193

約数和(自身を除く): 131119471

約数列:

[1, 2, 13, 26, 169, 338, 787, 1574, 10231, 20462, 133003, 266006, 619369, 1238738, 8051797, 16103594, 104673361, 209346722]

約数ペア:

[(1, 209346722), (2, 104673361), (13, 16103594), (26, 8051797), (169, 1238738), (338, 619369), (787, 266006), (1574, 133003), (10231, 20462)]