21120289916

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{480006589}}^1$

素因数の和:480006604

約数の個数: 12

約数和(自身を含む): 40320553560

約数和(自身を除く): 19200263644

約数列:

[1, 2, 4, 11, 22, 44, 480006589, 960013178, 1920026356, 5280072479, 10560144958, 21120289916]

約数ペア:

[(1, 21120289916), (2, 10560144958), (4, 5280072479), (11, 1920026356), (22, 960013178), (44, 480006589)]