18847964

素因数分解:

$2^2\times {\mathrm{641}}^1\times {\mathrm{7351}}^1$

素因数の和:7996

約数の個数: 12

約数和(自身を含む): 33039888

約数和(自身を除く): 14191924

約数列:

[1, 2, 4, 641, 1282, 2564, 7351, 14702, 29404, 4711991, 9423982, 18847964]

約数ペア:

[(1, 18847964), (2, 9423982), (4, 4711991), (641, 29404), (1282, 14702), (2564, 7351)]