21571158

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{2689}}^1$

素因数の和:2892

約数の個数: 32

約数和(自身を含む): 49582080

約数和(自身を除く): 28010922

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 191, 382, 573, 1146, 1337, 2674, 2689, 4011, 5378, 8022, 8067, 16134, 18823, 37646, 56469, 112938, 513599, 1027198, 1540797, 3081594, 3595193, 7190386, 10785579, 21571158]

約数ペア:

[(1, 21571158), (2, 10785579), (3, 7190386), (6, 3595193), (7, 3081594), (14, 1540797), (21, 1027198), (42, 513599), (191, 112938), (382, 56469), (573, 37646), (1146, 18823), (1337, 16134), (2674, 8067), (2689, 8022), (4011, 5378)]