21661043089

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{631}}^1\times {\mathrm{132541}}^1$

素因数の和:133216

約数の個数: 16

約数和(自身を含む): 25465029376

約数和(自身を除く): 3803986287

約数列:

[1, 7, 37, 259, 631, 4417, 23347, 132541, 163429, 927787, 4904017, 34328119, 83633371, 585433597, 3094434727, 21661043089]

約数ペア:

[(1, 21661043089), (7, 3094434727), (37, 585433597), (259, 83633371), (631, 34328119), (4417, 4904017), (23347, 927787), (132541, 163429)]