20574519

素因数分解:

$3^1\times 7^1\times {\mathrm{971}}^1\times {\mathrm{1009}}^1$

素因数の和:1990

約数の個数: 16

約数和(自身を含む): 31415040

約数和(自身を除く): 10840521

約数列:

[1, 3, 7, 21, 971, 1009, 2913, 3027, 6797, 7063, 20391, 21189, 979739, 2939217, 6858173, 20574519]

約数ペア:

[(1, 20574519), (3, 6858173), (7, 2939217), (21, 979739), (971, 21189), (1009, 20391), (2913, 7063), (3027, 6797)]