21540506

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{19267}}^1$

素因数の和:19325

約数の個数: 16

約数和(自身を含む): 35607264

約数和(自身を除く): 14066758

約数列:

[1, 2, 13, 26, 43, 86, 559, 1118, 19267, 38534, 250471, 500942, 828481, 1656962, 10770253, 21540506]

約数ペア:

[(1, 21540506), (2, 10770253), (13, 1656962), (26, 828481), (43, 500942), (86, 250471), (559, 38534), (1118, 19267)]