19747730

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{14207}}^1$

素因数の和:14353

約数の個数: 16

約数和(自身を含む): 35804160

約数和(自身を除く): 16056430

約数列:

[1, 2, 5, 10, 139, 278, 695, 1390, 14207, 28414, 71035, 142070, 1974773, 3949546, 9873865, 19747730]

約数ペア:

[(1, 19747730), (2, 9873865), (5, 3949546), (10, 1974773), (139, 142070), (278, 71035), (695, 28414), (1390, 14207)]