18644339

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{1361}}^1$

素因数の和:1490

約数の個数: 16

約数和(自身を含む): 22663680

約数和(自身を除く): 4019341

約数列:

[1, 7, 19, 103, 133, 721, 1361, 1957, 9527, 13699, 25859, 140183, 181013, 981281, 2663477, 18644339]

約数ペア:

[(1, 18644339), (7, 2663477), (19, 981281), (103, 181013), (133, 140183), (721, 25859), (1361, 13699), (1957, 9527)]