21074365

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{929}}^1$

素因数の和:1296

約数の個数: 16

約数和(自身を含む): 27342000

約数和(自身を除く): 6267635

約数列:

[1, 5, 13, 65, 349, 929, 1745, 4537, 4645, 12077, 22685, 60385, 324221, 1621105, 4214873, 21074365]

約数ペア:

[(1, 21074365), (5, 4214873), (13, 1621105), (65, 324221), (349, 60385), (929, 22685), (1745, 12077), (4537, 4645)]