20458974

素因数分解:

$2^1\times 3^1\times {\mathrm{643}}^1\times {\mathrm{5303}}^1$

素因数の和:5951

約数の個数: 16

約数和(自身を含む): 40989312

約数和(自身を除く): 20530338

約数列:

[1, 2, 3, 6, 643, 1286, 1929, 3858, 5303, 10606, 15909, 31818, 3409829, 6819658, 10229487, 20458974]

約数ペア:

[(1, 20458974), (2, 10229487), (3, 6819658), (6, 3409829), (643, 31818), (1286, 15909), (1929, 10606), (3858, 5303)]