17963937

素因数分解:

$3^4\times {\mathrm{463}}^1\times {\mathrm{479}}^1$

素因数の和:954

約数の個数: 20

約数和(自身を含む): 26949120

約数和(自身を除く): 8985183

約数列:

[1, 3, 9, 27, 81, 463, 479, 1389, 1437, 4167, 4311, 12501, 12933, 37503, 38799, 221777, 665331, 1995993, 5987979, 17963937]

約数ペア:

[(1, 17963937), (3, 5987979), (9, 1995993), (27, 665331), (81, 221777), (463, 38799), (479, 37503), (1389, 12933), (1437, 12501), (4167, 4311)]