20508255

素因数分解:

$3^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{2081}}^1$

素因数の和:2168

約数の個数: 32

約数和(自身を含む): 36976320

約数和(自身を除く): 16468065

約数列:

[1, 3, 5, 9, 15, 27, 45, 73, 135, 219, 365, 657, 1095, 1971, 2081, 3285, 6243, 9855, 10405, 18729, 31215, 56187, 93645, 151913, 280935, 455739, 759565, 1367217, 2278695, 4101651, 6836085, 20508255]

約数ペア:

[(1, 20508255), (3, 6836085), (5, 4101651), (9, 2278695), (15, 1367217), (27, 759565), (45, 455739), (73, 280935), (135, 151913), (219, 93645), (365, 56187), (657, 31215), (1095, 18729), (1971, 10405), (2081, 9855), (3285, 6243)]