19201155

素因数分解:

$3^1\times 5^1\times {\mathrm{641}}^1\times {\mathrm{1997}}^1$

素因数の和:2646

約数の個数: 16

約数和(自身を含む): 30785184

約数和(自身を除く): 11584029

約数列:

[1, 3, 5, 15, 641, 1923, 1997, 3205, 5991, 9615, 9985, 29955, 1280077, 3840231, 6400385, 19201155]

約数ペア:

[(1, 19201155), (3, 6400385), (5, 3840231), (15, 1280077), (641, 29955), (1923, 9985), (1997, 9615), (3205, 5991)]