21000902503

素因数分解:

$7^3\times {\mathrm{227}}^1\times {\mathrm{269723}}^1$

素因数の和:269971

約数の個数: 16

約数和(自身を含む): 24598828800

約数和(自身を除く): 3597926297

約数列:

[1, 7, 49, 227, 343, 1589, 11123, 77861, 269723, 1888061, 13216427, 61227121, 92514989, 428589847, 3000128929, 21000902503]

約数ペア:

[(1, 21000902503), (7, 3000128929), (49, 428589847), (227, 92514989), (343, 61227121), (1589, 13216427), (11123, 1888061), (77861, 269723)]