19537209

素因数分解:

$3^2\times {\mathrm{73}}^1\times {\mathrm{131}}^1\times {\mathrm{227}}^1$

素因数の和:437

約数の個数: 24

約数和(自身を含む): 28952352

約数和(自身を除く): 9415143

約数列:

[1, 3, 9, 73, 131, 219, 227, 393, 657, 681, 1179, 2043, 9563, 16571, 28689, 29737, 49713, 86067, 89211, 149139, 267633, 2170801, 6512403, 19537209]

約数ペア:

[(1, 19537209), (3, 6512403), (9, 2170801), (73, 267633), (131, 149139), (219, 89211), (227, 86067), (393, 49713), (657, 29737), (681, 28689), (1179, 16571), (2043, 9563)]