16878916

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{11689}}^1$

素因数の和:11731

約数の個数: 18

約数和(自身を含む): 31177230

約数和(自身を除く): 14298314

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 11689, 23378, 46756, 222091, 444182, 888364, 4219729, 8439458, 16878916]

約数ペア:

[(1, 16878916), (2, 8439458), (4, 4219729), (19, 888364), (38, 444182), (76, 222091), (361, 46756), (722, 23378), (1444, 11689)]