51399765

素因数分解:

$3^4\times 5^1\times {\mathrm{126913}}^1$

素因数の和:126930

約数の個数: 20

約数和(自身を含む): 92139564

約数和(自身を除く): 40739799

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 126913, 380739, 634565, 1142217, 1903695, 3426651, 5711085, 10279953, 17133255, 51399765]

約数ペア:

[(1, 51399765), (3, 17133255), (5, 10279953), (9, 5711085), (15, 3426651), (27, 1903695), (45, 1142217), (81, 634565), (135, 380739), (405, 126913)]