21688088

素因数分解:

$2^3\times {\mathrm{223}}^1\times {\mathrm{12157}}^1$

素因数の和:12386

約数の個数: 16

約数和(自身を含む): 40850880

約数和(自身を除く): 19162792

約数列:

[1, 2, 4, 8, 223, 446, 892, 1784, 12157, 24314, 48628, 97256, 2711011, 5422022, 10844044, 21688088]

約数ペア:

[(1, 21688088), (2, 10844044), (4, 5422022), (8, 2711011), (223, 97256), (446, 48628), (892, 24314), (1784, 12157)]