21463665

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{311}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 35582976

約数和(自身を除く): 14119311

約数列:

[1, 3, 5, 15, 43, 107, 129, 215, 311, 321, 535, 645, 933, 1555, 1605, 4601, 4665, 13373, 13803, 23005, 33277, 40119, 66865, 69015, 99831, 166385, 200595, 499155, 1430911, 4292733, 7154555, 21463665]

約数ペア:

[(1, 21463665), (3, 7154555), (5, 4292733), (15, 1430911), (43, 499155), (107, 200595), (129, 166385), (215, 99831), (311, 69015), (321, 66865), (535, 40119), (645, 33277), (933, 23005), (1555, 13803), (1605, 13373), (4601, 4665)]