210931985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{89189}}^1$

素因数の和:89248

約数の個数: 16

約数和(自身を含む): 282553920

約数和(自身を除く): 71621935

約数列:

[1, 5, 11, 43, 55, 215, 473, 2365, 89189, 445945, 981079, 3835127, 4905395, 19175635, 42186397, 210931985]

約数ペア:

[(1, 210931985), (5, 42186397), (11, 19175635), (43, 4905395), (55, 3835127), (215, 981079), (473, 445945), (2365, 89189)]