20880255

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{126547}}^1$

素因数の和:126566

約数の個数: 16

約数和(自身を含む): 36445824

約数和(自身を除く): 15565569

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 126547, 379641, 632735, 1392017, 1898205, 4176051, 6960085, 20880255]

約数ペア:

[(1, 20880255), (3, 6960085), (5, 4176051), (11, 1898205), (15, 1392017), (33, 632735), (55, 379641), (165, 126547)]