21086565

素因数分解:

$3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{16937}}^1$

素因数の和:17028

約数の個数: 16

約数和(自身を含む): 34147008

約数和(自身を除く): 13060443

約数列:

[1, 3, 5, 15, 83, 249, 415, 1245, 16937, 50811, 84685, 254055, 1405771, 4217313, 7028855, 21086565]

約数ペア:

[(1, 21086565), (3, 7028855), (5, 4217313), (15, 1405771), (83, 254055), (249, 84685), (415, 50811), (1245, 16937)]