21000466370

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{161542049}}^1$

素因数の和:161542069

約数の個数: 16

約数和(自身を含む): 40708596600

約数和(自身を除く): 19708130230

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 161542049, 323084098, 807710245, 1615420490, 2100046637, 4200093274, 10500233185, 21000466370]

約数ペア:

[(1, 21000466370), (2, 10500233185), (5, 4200093274), (10, 2100046637), (13, 1615420490), (26, 807710245), (65, 323084098), (130, 161542049)]