20775015

素因数分解:

$3^3\times 5^1\times {\mathrm{153889}}^1$

素因数の和:153903

約数の個数: 16

約数和(自身を含む): 36933600

約数和(自身を除く): 16158585

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 153889, 461667, 769445, 1385001, 2308335, 4155003, 6925005, 20775015]

約数ペア:

[(1, 20775015), (3, 6925005), (5, 4155003), (9, 2308335), (15, 1385001), (27, 769445), (45, 461667), (135, 153889)]