21000768272

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{119322547}}^1$

素因数の和:119322566

約数の個数: 20

約数和(自身を含む): 44387987856

約数和(自身を除く): 23387219584

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 119322547, 238645094, 477290188, 954580376, 1312548017, 1909160752, 2625096034, 5250192068, 10500384136, 21000768272]

約数ペア:

[(1, 21000768272), (2, 10500384136), (4, 5250192068), (8, 2625096034), (11, 1909160752), (16, 1312548017), (22, 954580376), (44, 477290188), (88, 238645094), (176, 119322547)]