20981819

素因数分解:

${\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{379}}^1$

素因数の和:514

約数の個数: 16

約数和(自身を含む): 22982400

約数和(自身を除く): 2000581

約数列:

[1, 23, 29, 83, 379, 667, 1909, 2407, 8717, 10991, 31457, 55361, 252793, 723511, 912253, 20981819]

約数ペア:

[(1, 20981819), (23, 912253), (29, 723511), (83, 252793), (379, 55361), (667, 31457), (1909, 10991), (2407, 8717)]