21122156

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{480049}}^1$

素因数の和:480064

約数の個数: 12

約数和(自身を含む): 40324200

約数和(自身を除く): 19202044

約数列:

[1, 2, 4, 11, 22, 44, 480049, 960098, 1920196, 5280539, 10561078, 21122156]

約数ペア:

[(1, 21122156), (2, 10561078), (4, 5280539), (11, 1920196), (22, 960098), (44, 480049)]