1971351375

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{727}}^1\times {\mathrm{1033}}^1$

素因数の和:1785

約数の個数: 64

約数和(自身を含む): 3757737984

約数和(自身を除く): 1786386609

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 125, 175, 375, 525, 727, 875, 1033, 2181, 2625, 3099, 3635, 5089, 5165, 7231, 10905, 15267, 15495, 18175, 21693, 25445, 25825, 36155, 54525, 76335, 77475, 90875, 108465, 127225, 129125, 180775, 272625, 381675, 387375, 542325, 636125, 750991, 903875, 1908375, 2252973, 2711625, 3754955, 5256937, 11264865, 15770811, 18774775, 26284685, 56324325, 78854055, 93873875, 131423425, 281621625, 394270275, 657117125, 1971351375]

約数ペア:

[(1, 1971351375), (3, 657117125), (5, 394270275), (7, 281621625), (15, 131423425), (21, 93873875), (25, 78854055), (35, 56324325), (75, 26284685), (105, 18774775), (125, 15770811), (175, 11264865), (375, 5256937), (525, 3754955), (727, 2711625), (875, 2252973), (1033, 1908375), (2181, 903875), (2625, 750991), (3099, 636125), (3635, 542325), (5089, 387375), (5165, 381675), (7231, 272625), (10905, 180775), (15267, 129125), (15495, 127225), (18175, 108465), (21693, 90875), (25445, 77475), (25825, 76335), (36155, 54525)]