20405938

素因数分解:

$2^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{6421}}^1$

素因数の和:6657

約数の個数: 16

約数和(自身を含む): 35141184

約数和(自身を除く): 14735246

約数列:

[1, 2, 7, 14, 227, 454, 1589, 3178, 6421, 12842, 44947, 89894, 1457567, 2915134, 10202969, 20405938]

約数ペア:

[(1, 20405938), (2, 10202969), (7, 2915134), (14, 1457567), (227, 89894), (454, 44947), (1589, 12842), (3178, 6421)]