21493624321

素因数分解:

${\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{1898227}}^1$

素因数の和:1898320

約数の個数: 12

約数和(自身を含む): 23621549232

約数和(自身を除く): 2127924911

約数列:

[1, 13, 67, 169, 871, 11323, 1898227, 24676951, 127181209, 320800363, 1653355717, 21493624321]

約数ペア:

[(1, 21493624321), (13, 1653355717), (67, 320800363), (169, 127181209), (871, 24676951), (11323, 1898227)]