21986437

素因数分解:

${\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{439}}^1$

素因数の和:636

約数の個数: 16

約数和(自身を含む): 25027200

約数和(自身を除く): 3040763

約数列:

[1, 11, 29, 157, 319, 439, 1727, 4553, 4829, 12731, 50083, 68923, 140041, 758153, 1998767, 21986437]

約数ペア:

[(1, 21986437), (11, 1998767), (29, 758153), (157, 140041), (319, 68923), (439, 50083), (1727, 12731), (4553, 4829)]