21342377

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{4337}}^1$

素因数の和:4400

約数の個数: 16

約数和(自身を含む): 26375040

約数和(自身を除く): 5032663

約数列:

[1, 7, 19, 37, 133, 259, 703, 4337, 4921, 30359, 82403, 160469, 576821, 1123283, 3048911, 21342377]

約数ペア:

[(1, 21342377), (7, 3048911), (19, 1123283), (37, 576821), (133, 160469), (259, 82403), (703, 30359), (4337, 4921)]