18797704

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{21557}}^1$

素因数の和:21672

約数の個数: 16

約数和(自身を含む): 35570700

約数和(自身を除く): 16772996

約数列:

[1, 2, 4, 8, 109, 218, 436, 872, 21557, 43114, 86228, 172456, 2349713, 4699426, 9398852, 18797704]

約数ペア:

[(1, 18797704), (2, 9398852), (4, 4699426), (8, 2349713), (109, 172456), (218, 86228), (436, 43114), (872, 21557)]