21185936

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{19763}}^1$

素因数の和:19838

約数の個数: 20

約数和(自身を含む): 41662512

約数和(自身を除く): 20476576

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 19763, 39526, 79052, 158104, 316208, 1324121, 2648242, 5296484, 10592968, 21185936]

約数ペア:

[(1, 21185936), (2, 10592968), (4, 5296484), (8, 2648242), (16, 1324121), (67, 316208), (134, 158104), (268, 79052), (536, 39526), (1072, 19763)]