20540331

素因数分解:

$3^3\times 7^1\times {\mathrm{191}}^1\times {\mathrm{569}}^1$

素因数の和:776

約数の個数: 32

約数和(自身を含む): 35020800

約数和(自身を除く): 14480469

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 191, 569, 573, 1337, 1707, 1719, 3983, 4011, 5121, 5157, 11949, 12033, 15363, 35847, 36099, 107541, 108679, 326037, 760753, 978111, 2282259, 2934333, 6846777, 20540331]

約数ペア:

[(1, 20540331), (3, 6846777), (7, 2934333), (9, 2282259), (21, 978111), (27, 760753), (63, 326037), (189, 108679), (191, 107541), (569, 36099), (573, 35847), (1337, 15363), (1707, 12033), (1719, 11949), (3983, 5157), (4011, 5121)]