138519171

素因数分解:

$3^2\times 7^1\times {\mathrm{197}}^1\times {\mathrm{11161}}^1$

素因数の和:11371

約数の個数: 24

約数和(自身を含む): 229847904

約数和(自身を除く): 91328733

約数列:

[1, 3, 7, 9, 21, 63, 197, 591, 1379, 1773, 4137, 11161, 12411, 33483, 78127, 100449, 234381, 703143, 2198717, 6596151, 15391019, 19788453, 46173057, 138519171]

約数ペア:

[(1, 138519171), (3, 46173057), (7, 19788453), (9, 15391019), (21, 6596151), (63, 2198717), (197, 703143), (591, 234381), (1379, 100449), (1773, 78127), (4137, 33483), (11161, 12411)]