81145029

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1709}}^1$

素因数の和:1762

約数の個数: 48

約数和(自身を含む): 140356800

約数和(自身を除く): 59211771

約数列:

[1, 3, 7, 17, 19, 21, 49, 51, 57, 119, 133, 147, 323, 357, 399, 833, 931, 969, 1709, 2261, 2499, 2793, 5127, 6783, 11963, 15827, 29053, 32471, 35889, 47481, 83741, 87159, 97413, 203371, 227297, 251223, 552007, 610113, 681891, 1423597, 1591079, 1656021, 3864049, 4270791, 4773237, 11592147, 27048343, 81145029]

約数ペア:

[(1, 81145029), (3, 27048343), (7, 11592147), (17, 4773237), (19, 4270791), (21, 3864049), (49, 1656021), (51, 1591079), (57, 1423597), (119, 681891), (133, 610113), (147, 552007), (323, 251223), (357, 227297), (399, 203371), (833, 97413), (931, 87159), (969, 83741), (1709, 47481), (2261, 35889), (2499, 32471), (2793, 29053), (5127, 15827), (6783, 11963)]