21087769077

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1689319}}^1$

素因数の和:1689417

約数の個数: 24

約数和(自身を含む): 32502516800

約数和(自身を除く): 11414747723

約数列:

[1, 3, 9, 19, 57, 73, 171, 219, 657, 1387, 4161, 12483, 1689319, 5067957, 15203871, 32097061, 96291183, 123320287, 288873549, 369960861, 1109882583, 2343085453, 7029256359, 21087769077]

約数ペア:

[(1, 21087769077), (3, 7029256359), (9, 2343085453), (19, 1109882583), (57, 369960861), (73, 288873549), (171, 123320287), (219, 96291183), (657, 32097061), (1387, 15203871), (4161, 5067957), (12483, 1689319)]