20382668

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{997}}^1$

素因数の和:1289

約数の個数: 24

約数和(自身を含む): 37724400

約数和(自身を除く): 17341732

約数列:

[1, 2, 4, 19, 38, 76, 269, 538, 997, 1076, 1994, 3988, 5111, 10222, 18943, 20444, 37886, 75772, 268193, 536386, 1072772, 5095667, 10191334, 20382668]

約数ペア:

[(1, 20382668), (2, 10191334), (4, 5095667), (19, 1072772), (38, 536386), (76, 268193), (269, 75772), (538, 37886), (997, 20444), (1076, 18943), (1994, 10222), (3988, 5111)]