28908243

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{751}}^1$

素因数の和:824

約数の個数: 48

約数和(自身を含む): 52555776

約数和(自身を除く): 23647533

約数列:

[1, 3, 7, 9, 13, 21, 39, 47, 63, 91, 117, 141, 273, 329, 423, 611, 751, 819, 987, 1833, 2253, 2961, 4277, 5257, 5499, 6759, 9763, 12831, 15771, 29289, 35297, 38493, 47313, 68341, 87867, 105891, 205023, 247079, 317673, 458861, 615069, 741237, 1376583, 2223711, 3212027, 4129749, 9636081, 28908243]

約数ペア:

[(1, 28908243), (3, 9636081), (7, 4129749), (9, 3212027), (13, 2223711), (21, 1376583), (39, 741237), (47, 615069), (63, 458861), (91, 317673), (117, 247079), (141, 205023), (273, 105891), (329, 87867), (423, 68341), (611, 47313), (751, 38493), (819, 35297), (987, 29289), (1833, 15771), (2253, 12831), (2961, 9763), (4277, 6759), (5257, 5499)]