21787088

素因数分解:

$2^4\times {\mathrm{1153}}^1\times {\mathrm{1181}}^1$

素因数の和:2342

約数の個数: 20

約数和(自身を含む): 42284868

約数和(自身を除く): 20497780

約数列:

[1, 2, 4, 8, 16, 1153, 1181, 2306, 2362, 4612, 4724, 9224, 9448, 18448, 18896, 1361693, 2723386, 5446772, 10893544, 21787088]

約数ペア:

[(1, 21787088), (2, 10893544), (4, 5446772), (8, 2723386), (16, 1361693), (1153, 18896), (1181, 18448), (2306, 9448), (2362, 9224), (4612, 4724)]