21225243

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{4993}}^1$

素因数の和:5118

約数の個数: 16

約数和(自身を含む): 30763040

約数和(自身を除く): 9537797

約数列:

[1, 3, 13, 39, 109, 327, 1417, 4251, 4993, 14979, 64909, 194727, 544237, 1632711, 7075081, 21225243]

約数ペア:

[(1, 21225243), (3, 7075081), (13, 1632711), (39, 544237), (109, 194727), (327, 64909), (1417, 14979), (4251, 4993)]