21526617

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{769}}^1$

素因数の和:853

約数の個数: 32

約数和(自身を含む): 34693120

約数和(自身を除く): 13166503

約数列:

[1, 3, 7, 21, 31, 43, 93, 129, 217, 301, 651, 769, 903, 1333, 2307, 3999, 5383, 9331, 16149, 23839, 27993, 33067, 71517, 99201, 166873, 231469, 500619, 694407, 1025077, 3075231, 7175539, 21526617]

約数ペア:

[(1, 21526617), (3, 7175539), (7, 3075231), (21, 1025077), (31, 694407), (43, 500619), (93, 231469), (129, 166873), (217, 99201), (301, 71517), (651, 33067), (769, 27993), (903, 23839), (1333, 16149), (2307, 9331), (3999, 5383)]