21349256

素因数分解:

$2^3\times {\mathrm{281}}^1\times {\mathrm{9497}}^1$

素因数の和:9784

約数の個数: 16

約数和(自身を含む): 40176540

約数和(自身を除く): 18827284

約数列:

[1, 2, 4, 8, 281, 562, 1124, 2248, 9497, 18994, 37988, 75976, 2668657, 5337314, 10674628, 21349256]

約数ペア:

[(1, 21349256), (2, 10674628), (4, 5337314), (8, 2668657), (281, 75976), (562, 37988), (1124, 18994), (2248, 9497)]