19691745

素因数分解:

$3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{12269}}^1$

素因数の和:12384

約数の個数: 16

約数和(自身を含む): 31803840

約数和(自身を除く): 12112095

約数列:

[1, 3, 5, 15, 107, 321, 535, 1605, 12269, 36807, 61345, 184035, 1312783, 3938349, 6563915, 19691745]

約数ペア:

[(1, 19691745), (3, 6563915), (5, 3938349), (15, 1312783), (107, 184035), (321, 61345), (535, 36807), (1605, 12269)]