20972941

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{4363}}^1$

素因数の和:4416

約数の個数: 16

約数和(自身を含む): 25136640

約数和(自身を除く): 4163699

約数列:

[1, 11, 19, 23, 209, 253, 437, 4363, 4807, 47993, 82897, 100349, 911867, 1103839, 1906631, 20972941]

約数ペア:

[(1, 20972941), (11, 1906631), (19, 1103839), (23, 911867), (209, 100349), (253, 82897), (437, 47993), (4363, 4807)]