21937383

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{14423}}^1$

素因数の和:14455

約数の個数: 18

約数和(自身を含む): 34314696

約数和(自身を除く): 12377313

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 14423, 43269, 129807, 187499, 562497, 1687491, 2437487, 7312461, 21937383]

約数ペア:

[(1, 21937383), (3, 7312461), (9, 2437487), (13, 1687491), (39, 562497), (117, 187499), (169, 129807), (507, 43269), (1521, 14423)]