20451338

素因数分解:

$2^1\times {\mathrm{107}}^1\times {\mathrm{227}}^1\times {\mathrm{421}}^1$

素因数の和:757

約数の個数: 16

約数和(自身を含む): 31173984

約数和(自身を除く): 10722646

約数列:

[1, 2, 107, 214, 227, 421, 454, 842, 24289, 45047, 48578, 90094, 95567, 191134, 10225669, 20451338]

約数ペア:

[(1, 20451338), (2, 10225669), (107, 191134), (214, 95567), (227, 90094), (421, 48578), (454, 45047), (842, 24289)]