20280391

素因数分解:

${\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{241}}^1$

素因数の和:406

約数の個数: 16

約数和(自身を含む): 22147840

約数和(自身を除く): 1867449

約数列:

[1, 19, 43, 103, 241, 817, 1957, 4429, 4579, 10363, 24823, 84151, 196897, 471637, 1067389, 20280391]

約数ペア:

[(1, 20280391), (19, 1067389), (43, 471637), (103, 196897), (241, 84151), (817, 24823), (1957, 10363), (4429, 4579)]