20555565

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{19301}}^1$

素因数の和:19380

約数の個数: 16

約数和(自身を含む): 33353856

約数和(自身を除く): 12798291

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 19301, 57903, 96505, 289515, 1370371, 4111113, 6851855, 20555565]

約数ペア:

[(1, 20555565), (3, 6851855), (5, 4111113), (15, 1370371), (71, 289515), (213, 96505), (355, 57903), (1065, 19301)]