20880765

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{12541}}^1$

素因数の和:12589

約数の個数: 24

約数和(自身を含む): 37174488

約数和(自身を除く): 16293723

約数列:

[1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 1665, 12541, 37623, 62705, 112869, 188115, 464017, 564345, 1392051, 2320085, 4176153, 6960255, 20880765]

約数ペア:

[(1, 20880765), (3, 6960255), (5, 4176153), (9, 2320085), (15, 1392051), (37, 564345), (45, 464017), (111, 188115), (185, 112869), (333, 62705), (555, 37623), (1665, 12541)]