18930541

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{307}}^1\times {\mathrm{383}}^1$

素因数の和:720

約数の個数: 16

約数和(自身を含む): 22708224

約数和(自身を除く): 3777683

約数列:

[1, 7, 23, 161, 307, 383, 2149, 2681, 7061, 8809, 49427, 61663, 117581, 823067, 2704363, 18930541]

約数ペア:

[(1, 18930541), (7, 2704363), (23, 823067), (161, 117581), (307, 61663), (383, 49427), (2149, 8809), (2681, 7061)]