21090896

素因数分解:

$2^4\times {\mathrm{163}}^1\times {\mathrm{8087}}^1$

素因数の和:8258

約数の個数: 20

約数和(自身を含む): 41119392

約数和(自身を除く): 20028496

約数列:

[1, 2, 4, 8, 16, 163, 326, 652, 1304, 2608, 8087, 16174, 32348, 64696, 129392, 1318181, 2636362, 5272724, 10545448, 21090896]

約数ペア:

[(1, 21090896), (2, 10545448), (4, 5272724), (8, 2636362), (16, 1318181), (163, 129392), (326, 64696), (652, 32348), (1304, 16174), (2608, 8087)]