21429656

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{157571}}^1$

素因数の和:157594

約数の個数: 16

約数和(自身を含む): 42544440

約数和(自身を除く): 21114784

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 157571, 315142, 630284, 1260568, 2678707, 5357414, 10714828, 21429656]

約数ペア:

[(1, 21429656), (2, 10714828), (4, 5357414), (8, 2678707), (17, 1260568), (34, 630284), (68, 315142), (136, 157571)]