21299650

素因数分解:

$2^1\times 5^2\times {\mathrm{313}}^1\times {\mathrm{1361}}^1$

素因数の和:1686

約数の個数: 24

約数和(自身を含む): 39773124

約数和(自身を除く): 18473474

約数列:

[1, 2, 5, 10, 25, 50, 313, 626, 1361, 1565, 2722, 3130, 6805, 7825, 13610, 15650, 34025, 68050, 425993, 851986, 2129965, 4259930, 10649825, 21299650]

約数ペア:

[(1, 21299650), (2, 10649825), (5, 4259930), (10, 2129965), (25, 851986), (50, 425993), (313, 68050), (626, 34025), (1361, 15650), (1565, 13610), (2722, 7825), (3130, 6805)]