21000638871

素因数分解:

$3^2\times {\mathrm{107}}^1\times {\mathrm{1009}}^1\times {\mathrm{21613}}^1$

素因数の和:22735

約数の個数: 24

約数和(自身を含む): 30649516560

約数和(自身を除く): 9648877689

約数列:

[1, 3, 9, 107, 321, 963, 1009, 3027, 9081, 21613, 64839, 107963, 194517, 323889, 971667, 2312591, 6937773, 20813319, 21807517, 65422551, 196267653, 2333404319, 7000212957, 21000638871]

約数ペア:

[(1, 21000638871), (3, 7000212957), (9, 2333404319), (107, 196267653), (321, 65422551), (963, 21807517), (1009, 20813319), (3027, 6937773), (9081, 2312591), (21613, 971667), (64839, 323889), (107963, 194517)]