21985784

素因数分解:

$2^3\times {\mathrm{571}}^1\times {\mathrm{4813}}^1$

素因数の和:5390

約数の個数: 16

約数和(自身を含む): 41304120

約数和(自身を除く): 19318336

約数列:

[1, 2, 4, 8, 571, 1142, 2284, 4568, 4813, 9626, 19252, 38504, 2748223, 5496446, 10992892, 21985784]

約数ペア:

[(1, 21985784), (2, 10992892), (4, 5496446), (8, 2748223), (571, 38504), (1142, 19252), (2284, 9626), (4568, 4813)]