12191421

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{571}}^1\times {\mathrm{647}}^1$

素因数の和:1232

約数の個数: 16

約数和(自身を含む): 17791488

約数和(自身を除く): 5600067

約数列:

[1, 3, 11, 33, 571, 647, 1713, 1941, 6281, 7117, 18843, 21351, 369437, 1108311, 4063807, 12191421]

約数ペア:

[(1, 12191421), (3, 4063807), (11, 1108311), (33, 369437), (571, 21351), (647, 18843), (1713, 7117), (1941, 6281)]