21987322

素因数分解:

$2^1\times 7^1\times {\mathrm{541}}^1\times {\mathrm{2903}}^1$

素因数の和:3453

約数の個数: 16

約数和(自身を含む): 37775232

約数和(自身を除く): 15787910

約数列:

[1, 2, 7, 14, 541, 1082, 2903, 3787, 5806, 7574, 20321, 40642, 1570523, 3141046, 10993661, 21987322]

約数ペア:

[(1, 21987322), (2, 10993661), (7, 3141046), (14, 1570523), (541, 40642), (1082, 20321), (2903, 7574), (3787, 5806)]