18897350085

素因数分解:

$3^3\times 5^1\times {\mathrm{139980371}}^1$

素因数の和:139980385

約数の個数: 16

約数和(自身を含む): 33595289280

約数和(自身を除く): 14697939195

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 139980371, 419941113, 699901855, 1259823339, 2099705565, 3779470017, 6299116695, 18897350085]

約数ペア:

[(1, 18897350085), (3, 6299116695), (5, 3779470017), (9, 2099705565), (15, 1259823339), (27, 699901855), (45, 419941113), (135, 139980371)]