18921695697

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{56821909}}^1$

素因数の和:56821952

約数の個数: 12

約数和(自身を含む): 28070023540

約数和(自身を除く): 9148327843

約数列:

[1, 3, 9, 37, 111, 333, 56821909, 170465727, 511397181, 2102410633, 6307231899, 18921695697]

約数ペア:

[(1, 18921695697), (3, 6307231899), (9, 2102410633), (37, 511397181), (111, 170465727), (333, 56821909)]