21180045

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83059}}^1$

素因数の和:83084

約数の個数: 16

約数和(自身を含む): 35881920

約数和(自身を除く): 14701875

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 83059, 249177, 415295, 1245885, 1412003, 4236009, 7060015, 21180045]

約数ペア:

[(1, 21180045), (3, 7060015), (5, 4236009), (15, 1412003), (17, 1245885), (51, 415295), (85, 249177), (255, 83059)]