20498805

素因数分解:

$3^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{479}}^1$

素因数の和:810

約数の個数: 32

約数和(自身を含む): 36633600

約数和(自身を除く): 16134795

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 317, 479, 951, 1437, 1585, 2395, 2853, 4311, 4755, 7185, 8559, 12933, 14265, 21555, 42795, 64665, 151843, 455529, 759215, 1366587, 2277645, 4099761, 6832935, 20498805]

約数ペア:

[(1, 20498805), (3, 6832935), (5, 4099761), (9, 2277645), (15, 1366587), (27, 759215), (45, 455529), (135, 151843), (317, 64665), (479, 42795), (951, 21555), (1437, 14265), (1585, 12933), (2395, 8559), (2853, 7185), (4311, 4755)]