640211

素因数分解:

${\mathrm{11}}^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1$

素因数の和:83

約数の個数: 16

約数和(自身を含む): 778848

約数和(自身を除く): 138637

約数列:

[1, 11, 13, 37, 121, 143, 407, 481, 1331, 1573, 4477, 5291, 17303, 49247, 58201, 640211]

約数ペア:

[(1, 640211), (11, 58201), (13, 49247), (37, 17303), (121, 5291), (143, 4477), (407, 1573), (481, 1331)]