17889745

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{2131}}^1$

素因数の和:2232

約数の個数: 16

約数和(自身を含む): 22718592

約数和(自身を除く): 4828847

約数列:

[1, 5, 23, 73, 115, 365, 1679, 2131, 8395, 10655, 49013, 155563, 245065, 777815, 3577949, 17889745]

約数ペア:

[(1, 17889745), (5, 3577949), (23, 777815), (73, 245065), (115, 155563), (365, 49013), (1679, 10655), (2131, 8395)]