64721321

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{4057}}^1$

素因数の和:4160

約数の個数: 16

約数和(自身を含む): 77134464

約数和(自身を除く): 12413143

約数列:

[1, 7, 43, 53, 301, 371, 2279, 4057, 15953, 28399, 174451, 215021, 1221157, 1505147, 9245903, 64721321]

約数ペア:

[(1, 64721321), (7, 9245903), (43, 1505147), (53, 1221157), (301, 215021), (371, 174451), (2279, 28399), (4057, 15953)]