209872508

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{709}}^1\times {\mathrm{1721}}^1$

素因数の和:2477

約数の個数: 24

約数和(自身を含む): 376566960

約数和(自身を除く): 166694452

約数列:

[1, 2, 4, 43, 86, 172, 709, 1418, 1721, 2836, 3442, 6884, 30487, 60974, 74003, 121948, 148006, 296012, 1220189, 2440378, 4880756, 52468127, 104936254, 209872508]

約数ペア:

[(1, 209872508), (2, 104936254), (4, 52468127), (43, 4880756), (86, 2440378), (172, 1220189), (709, 296012), (1418, 148006), (1721, 121948), (2836, 74003), (3442, 60974), (6884, 30487)]