21609940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{98227}}^1$

素因数の和:98247

約数の個数: 24

約数和(自身を含む): 49506912

約数和(自身を除く): 27896972

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 98227, 196454, 392908, 491135, 982270, 1080497, 1964540, 2160994, 4321988, 5402485, 10804970, 21609940]

約数ペア:

[(1, 21609940), (2, 10804970), (4, 5402485), (5, 4321988), (10, 2160994), (11, 1964540), (20, 1080497), (22, 982270), (44, 491135), (55, 392908), (110, 196454), (220, 98227)]