1388303973

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{491}}^1\times {\mathrm{1213}}^1$

素因数の和:1754

約数の個数: 48

約数和(自身を含む): 2360482176

約数和(自身を除く): 972178203

約数列:

[1, 3, 7, 9, 21, 37, 63, 111, 259, 333, 491, 777, 1213, 1473, 2331, 3437, 3639, 4419, 8491, 10311, 10917, 18167, 25473, 30933, 44881, 54501, 76419, 127169, 134643, 163503, 314167, 381507, 403929, 595583, 942501, 1144521, 1786749, 2827503, 4169081, 5360247, 12507243, 22036571, 37521729, 66109713, 154255997, 198329139, 462767991, 1388303973]

約数ペア:

[(1, 1388303973), (3, 462767991), (7, 198329139), (9, 154255997), (21, 66109713), (37, 37521729), (63, 22036571), (111, 12507243), (259, 5360247), (333, 4169081), (491, 2827503), (777, 1786749), (1213, 1144521), (1473, 942501), (2331, 595583), (3437, 403929), (3639, 381507), (4419, 314167), (8491, 163503), (10311, 134643), (10917, 127169), (18167, 76419), (25473, 54501), (30933, 44881)]