18647187

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{647}}^1\times {\mathrm{739}}^1$

素因数の和:1402

約数の個数: 16

約数和(自身を含む): 26853120

約数和(自身を除く): 8205933

約数列:

[1, 3, 13, 39, 647, 739, 1941, 2217, 8411, 9607, 25233, 28821, 478133, 1434399, 6215729, 18647187]

約数ペア:

[(1, 18647187), (3, 6215729), (13, 1434399), (39, 478133), (647, 28821), (739, 25233), (1941, 9607), (2217, 8411)]